{"id":21819,"date":"2025-07-08T23:15:54","date_gmt":"2025-07-08T16:15:54","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=21819"},"modified":"2025-07-08T23:15:54","modified_gmt":"2025-07-08T16:15:54","slug":"nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/","title":{"rendered":"Nguy\u00ean t\u1eed kh\u1ed1i l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u chi ti\u1ebft t\u1eeb  A\u2013Z"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Lich_su_nghien_cuu_cua_nguyen_tu_khoi\" >L\u1ecbch s\u1eed nghi\u00ean c\u1ee9u c\u1ee7a nguy\u00ean t\u1eed kh\u1ed1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Khai_niem_%E2%80%9CNguyen_tu_khoi_la_gi\" >Kh\u00e1i ni\u1ec7m \u201cNguy\u00ean t\u1eed kh\u1ed1i l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Bang_nguyen_tu_khoi_chi_tiet_cua_cac_nguyen_to\" >B\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i chi ti\u1ebft c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Huong_dan_cach_tinh_khoi_luong_thuc_cua_nguyen_tu\" >H\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh kh\u00f4\u0301i l\u01b0\u01a1\u0323ng th\u01b0\u0323c cu\u0309a nguy\u00ean t\u01b0\u0309<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Meo_ghi_nho_bang_nguyen_tu_khoi_hoa_hoc_don_gian_nhanh_chong\" >M\u1eb9o ghi nh\u1edb b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i h\u00f3a h\u1ecdc \u0111\u01a1n gi\u1ea3n, nhanh ch\u00f3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Ung_dung_bai_hoc_ve_nguyen_tu_khoi\" >\u1ee8ng d\u1ee5ng b\u00e0i h\u1ecdc v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/nguyen-tu-khoi-la-gi-tim-hieu-chi-tiet-tu-a-z\/#Bai_tap_cung_co_ve_nguyen_tu_khoi\" >B\u00e0i t\u1eadp c\u1ee7ng c\u1ed1 v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\" style=\"text-align: justify\">Nguy\u00ean t\u1eed kh\u1ed1i l\u00e0 ki\u1ebfn th\u1ee9c quan tr\u1ecdng m\u00e0 c\u00e1c b\u1ea1n h\u1ecdc sinh \u0111\u01b0\u1ee3c ti\u1ebfp c\u1eadn ngay t\u1eeb nh\u1eefng b\u00e0i h\u1ecdc \u0111\u1ea7u ti\u00ean trong ch\u01b0\u01a1ng tr\u00ecnh c\u1ee7a b\u1ed9 m\u00f4n H\u00f3a h\u1ecdc c\u1ea5p THCS. Trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd t\u1ed5ng h\u1ee3p nh\u1eefng l\u00fd thuy\u1ebft c\u01a1 b\u1ea3n c\u00f9ng b\u00e0i t\u1eadp th\u1ef1c h\u00e0nh \u0111\u1ec3 c\u00e1c b\u1ea1n h\u1ecdc sinh d\u1ec5 d\u00e0ng \u00f4n t\u1eadp t\u1ea1i nh\u00e0.<\/p>\n<p>                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/image\/600x480.png\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Lich_su_nghien_cuu_cua_nguyen_tu_khoi\"><\/span>L\u1ecbch s\u1eed nghi\u00ean c\u1ee9u c\u1ee7a nguy\u00ean t\u1eed kh\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Tr\u01b0\u1edbc khi t\u00ecm hi\u1ec3u chi ti\u1ebft kh\u00e1i ni\u1ec7m nguy\u00ean t\u1eed kh\u1ed1i l\u00e0 g\u00ec, h\u1eb3n nhi\u1ec1u b\u1ea1n s\u1ebd th\u1eafc m\u1eafc kh\u00f4ng bi\u1ebft l\u1ecbch s\u1eed nghi\u00ean c\u1ee9u c\u1ee7a nguy\u00ean t\u1eed kh\u1ed1i nh\u01b0 th\u1ebf n\u00e0o? Ai l\u00e0 nh\u00e0 khoa h\u1ecdc \u0111\u1ea7u ti\u00ean x\u00e1c \u0111\u1ecbnh n\u00f3?&#8230;<\/p>\n<p dir=\"ltr\">Th\u00f4ng tin Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef t\u1ed5ng h\u1ee3p t\u1eeb Wikipedia.org,\u00a0 John Dalton v\u00e0 Thomas Thomson ch\u00ednh l\u00e0 nh\u1eefng nh\u00e0 khoa h\u1ecdc \u0111\u1ea7u ti\u00ean x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c kh\u1ed1i l\u01b0\u1ee3ng nguy\u00ean t\u1eed t\u01b0\u01a1ng \u0111\u1ed1i. Kh\u1ed1i l\u01b0\u1ee3ng nguy\u00ean t\u1eed t\u01b0\u01a1ng \u0111\u1ed1i ban \u0111\u1ea7u \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a so v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean t\u1ed1 Hidro \u2013 nguy\u00ean t\u1ed1 nh\u1eb9 nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c t\u00ednh v\u1edbi \u0111\u01a1n v\u1ecb l\u00e0 1.00. Tuy nhi\u00ean, m\u1ed9t nh\u00e0 khoa h\u1ecdc c\u00f3 t\u00ean Berzelius \u0111\u00e3 ch\u1ee9ng minh \u0111i\u1ec1u n\u00e0y l\u00e0 ch\u01b0a ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/nguyen-tu-khoi-la-gi-2.jpg\" alt=\"Nh\u00e0 H\u00f3a h\u1ecdc, V\u1eadt l\u00fd h\u1ecdc John Dalton. (\u1ea2nh: Maestrovirtuale.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Tr\u1ea3i qua nhi\u1ec1u giai \u0111o\u1ea1n nghi\u00ean c\u1ee9u c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi, kh\u00e1i ni\u1ec7m\/ c\u1ee5m t\u1eeb kh\u1ed1i l\u01b0\u1ee3ng nguy\u00ean t\u1eed m\u00e3i t\u1edbi n\u0103m 1979 m\u1edbi \u0111\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t.\u00a0\u00a0<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Khai_niem_%E2%80%9CNguyen_tu_khoi_la_gi\"><\/span>Kh\u00e1i ni\u1ec7m \u201cNguy\u00ean t\u1eed kh\u1ed1i l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">S\u00e1ch Gi\u00e1o khoa H\u00f3a h\u1ecdc 8 \u0111\u1ecbnh ngh\u0129a: <em>\u201cNguy\u00ean t\u1eed kh\u1ed1i l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t nguy\u00ean t\u1eed t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb cacbon. M\u1ed7i nguy\u00ean t\u1ed1 c\u00f3 nguy\u00ean t\u1eed kh\u1ed1i ri\u00eang bi\u1ec7t\u201d<\/em>.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/nguyen-tu-khoi-la-gi.jpg\" alt=\"Nguy\u00ean t\u1eed kh\u1ed1i l\u00e0 l\u00fd thuy\u1ebft quan tr\u1ecdng trong ch\u01b0\u01a1ng tr\u00ecnh H\u00f3a h\u1ecdc. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Th\u1ef1c t\u1ebf, nguy\u00ean t\u1eed c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng v\u00f4 c\u00f9ng b\u00e9, n\u1ebfu t\u00ednh b\u1eb1ng gam th\u00ec s\u1ed1 tr\u1ecb r\u1ea5t nh\u1ecf, kh\u00f4ng ti\u1ec7n s\u1eed d\u1ee5ng. <em>V\u00ed d\u1ee5 nh\u01b0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 1 nguy\u00ean t\u1eed cacbon (C) l\u00e0 0, 000 000 000 000 000 000 000 019 926 g (=1,9926.10-23g). <\/em>B\u1edfi v\u1eady, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 d\u00f9ng m\u1ed9t c\u00e1ch kh\u00e1c \u0111\u1ec3 bi\u1ec3u hi\u1ec7n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean t\u1eed.<\/p>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3, h\u1ecd quy \u01b0\u1edbc l\u1ea5y <em>1\/12 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean t\u1eed cacbon l\u00e0m \u0111\u01a1n v\u1ecb kh\u1ed1i l\u01b0\u1ee3ng cho nguy\u00ean t\u1eed &#8211; \u0111\u01a1n v\u1ecb cacbon<\/em>, vi\u1ebft t\u1eaft l\u00e0 \u0111vC. Trong k\u00fd hi\u1ec7u qu\u1ed1c t\u1ebf n\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u \u0111\u1ea1t l\u00e0 \u201cu\u201d. D\u1ef1a v\u00e0o \u0111\u01a1n v\u1ecb n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t nguy\u00ean t\u1eed.<\/p>\n<p dir=\"ltr\">Nh\u01b0 v\u1eady \u0111\u1ebfn \u0111\u00e2y ta c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng tr\u1ea3 l\u1eddi \u0111\u01b0\u1ee3c c\u00e2u h\u1ecfi: Nguy\u00ean t\u1eed kh\u1ed1i l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t nguy\u00ean t\u1eed \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb n\u00e0o ph\u1ea3i kh\u00f4ng? \u0110\u00f3 ch\u00ednh l\u00e0 nguy\u00ean t\u1eed cacbon.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5, kh\u1ed1i l\u01b0\u1ee3ng t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb cacbon c\u1ee7a C l\u00e0 12 \u0111vC, Ca l\u00e0 40 \u0111vC, Oxi l\u00e0 16 \u0111vC\u2026<\/em><\/p>\n<p dir=\"ltr\">L\u01b0u \u00fd:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hidro l\u00e0 nguy\u00ean t\u1eed nh\u1eb9 nh\u1ea5t.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Nguy\u00ean t\u1eed kh\u00e1c c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng b\u1eb1ng bao nhi\u00eau \u0111\u01a1n v\u1ecb cacbon th\u00ec n\u1eb7ng b\u1eb1ng b\u1ea5y nhi\u00eau l\u1ea7n nguy\u00ean t\u1eed hidro.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Gi\u1eefa hai nguy\u00ean t\u1eed cacbon v\u00e0 oxi th\u00ec nguy\u00ean t\u1eed cacbon nh\u1eb9 h\u01a1n (12\/16=3\/4 l\u1ea7n).<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch\u00fang ta c\u00f3 th\u1ec3 b\u1ecf b\u1edbt ch\u1eef \u0111vC sau s\u1ed1 tr\u1ecb nguy\u00ean t\u1eed kh\u1ed1i.<\/p>\n<\/li>\n<\/ul>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5189%\">\n<p style=\"text-align: center\">X\u00c2Y D\u1ef0NG N\u1ec0N T\u1ea2NG TO\u00c1N H\u1eccC V\u1eeeNG CH\u1eaeC CHO TR\u1eba T\u1eea NH\u1ece V\u1edaI \u0110A PH\u01af\u01a0NG PH\u00c1P D\u1ea0Y H\u1eccC T\u00cdCH C\u1ef0C, CHI PH\u00cd C\u1ef0C R\u1eba CH\u01afA \u0110\u1ebeN 2K\/NG\u00c0Y C\u00d9NG MONKEY MATH.<\/p>\n<p>\u00a0<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/thamgiangay.png\" alt=\"\" width=\"185\" height=\"52\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bang_nguyen_tu_khoi_chi_tiet_cua_cac_nguyen_to\"><\/span>B\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i chi ti\u1ebft c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 thu\u1eadn ti\u1ec7n cho c\u00e1c b\u1ea1n h\u1ecdc sinh tra c\u1ee9u v\u00e0 t\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd chia s\u1ebb l\u1ea1i b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i chi ti\u1ebft c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc:<\/p>\n<table style=\"border-collapse: collapse;width: 100%;margin-left: auto;margin-right: auto;height: 6472.48px\" border=\"0.5px\" cellspacing=\"1\">\n<tr style=\"height: 54.3906px\">\n<td style=\"text-align: center;border: 0.5px solid #4e4c50;background-color: #fbeeb8;height: 54.3906px\">\n<p dir=\"ltr\">STT<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50;background-color: #fbeeb8;height: 54.3906px\">\n<p dir=\"ltr\">T\u00ean nguy\u00ean t\u1ed1<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50;background-color: #fbeeb8;height: 54.3906px\">\n<p dir=\"ltr\">K\u00fd hi\u1ec7u h\u00f3a h\u1ecdc<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50;background-color: #fbeeb8;height: 54.3906px\">\n<p dir=\"ltr\">Nguy\u00ean t\u1eed kh\u1ed1i<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">1<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Hi\u0111ro<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">H<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">1<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">2<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Heli<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">He<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">4<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Liti<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Li<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">7<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Beri<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Be<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">9<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">5<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bo<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">B<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">11<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">6<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cacbon<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">C<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">12<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">7<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nit\u01a1<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">N<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">14<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">8<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Oxi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">O<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">16<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">9<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Flo<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">F<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">19<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">10<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Neon<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ne<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">20<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">11<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Natri<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Na<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">23<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">12<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Magie<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mg<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">24<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">13<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nh\u00f4m<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Al<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">27<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">14<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Silic<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Si<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">28<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">15<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Photpho<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">P<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">31<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">16<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">L\u01b0u hu\u1ef3nh<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">S<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">32<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">17<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Clo<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cl<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">35,5<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">18<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Argon<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ar<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">39,9<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">19<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Kali<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">K<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">39<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">20<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Canxi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ca<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">40<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">21<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Scandi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Sc<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">44.955912(6)<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">22<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Titan<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ti<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">47,867(1)<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">23<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Vanadi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">V<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">50,9415(1)<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">24<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Crom<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">51,9961(6)<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">25<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mangan<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mn<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">54,938044<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">26<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">S\u1eaft<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Fe<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">55,845<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">27<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Coban<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Co<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">58,933195<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">28<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Niken<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">58,6934<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">29<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">\u0110\u1ed3ng<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cu<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">63,546<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">30<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">K\u1ebdm<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Zn<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">65,38<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">31<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Gali<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ga<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">69,723<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">32<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Gecmani<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ge<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">72,64<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">33<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Asen<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">As<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">74,9216<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">34<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Selen<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Se<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">78.96<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">35<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Brom<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Br<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">79,904<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">36<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Kryton<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Kr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">83,798<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">37<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rubidi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rb<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">85,4678<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">38<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Stronti<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Sr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">87,62<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">39<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Yttri<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Y<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">88,90585<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">40<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Zicorni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Zr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">91,224<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">41<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Niobi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nb<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">92,90638<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">42<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Molypden<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mo<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">95,95<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">43<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tecneti<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tc<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">98<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">44<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rutheni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ru<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">101,07<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">45<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rhodi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rh<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">102,9055<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">46<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Paladi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pd<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">106,42<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">47<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">B\u1ea1c<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ag<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">107,8682<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">48<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cadmi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cd<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">112,411<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">49<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Indi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">In<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">114,818<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">50<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Thi\u1ebfc<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Sn<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">118,71<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">51<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Antimon<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Sb<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">121,76<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">52<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Telua<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Te<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">127,6<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">53<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">I \u1ed1t<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">I<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">126,90447<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">54<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Xenon<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Xe<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">131,293<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">55<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">X\u00easi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cs<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">132,90545<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">56<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bari<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ba<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">137,327<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">57<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Lantan<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">La<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">138,90547<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">58<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Xeri<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cs<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">140,116<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">59<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Praseodymi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">140,90765<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">60<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Neodymi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nd<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">144,242<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">61<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Promethi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pm<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">145<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">62<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Samari<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Sm<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">150,36<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">63<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Europi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Eu<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">151,964<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">64<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Gadolini<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Gd<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">157,25<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">65<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Terbi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tb<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">158,92535<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">66<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Dysprosi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Dy<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">162,5<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">67<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Holmi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ho<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">164,93032<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">68<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Erbi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Er<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">167,259<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">69<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Thuli<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tm<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">168,93421<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">70<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ytterbium<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Yb<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">173,04<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">71<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Luteti<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Lu<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">174,967<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">72<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Hafni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Hf<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">178,49<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">73<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tantal<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ta<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">180,94788<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">74<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Wolfram<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">W<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">183,84<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">75<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rheni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Re<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">186,207<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">76<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Osmi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Os<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">190,23<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">77<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Iridi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ir<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">192,217<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">78<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Platin<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pt<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">195,084<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">79<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">V\u00e0ng<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Au<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">196,96657<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">80<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Th\u1ee7y ng\u00e2n<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Hg<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">200,59<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">81<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tali<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">TI<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">204,3833<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">82<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ch\u00ec<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pb<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">207,2\u00a0<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">83<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bitmut<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">208,9804<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">84<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Poloni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Po<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">209<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">85<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Astatin<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">At<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">210<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">86<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Radon<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rn<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">222<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">87<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Franxi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Fr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">223<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">88<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Radi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ra<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">226<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">89<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Actini<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ac<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">227<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">90<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Thori<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Th<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">232,03806<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">91<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Protactini<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pa<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">231,03588<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">92<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Urani<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">U<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">238,02891<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">93<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Neptuni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Np<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">237,0482<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">94<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Plutoni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Pu<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">244<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">95<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Americi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Am<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">243<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">96<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Curi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cm<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">247<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">97<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Berkeli<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bk<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">247<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">98<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Californi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cf<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">251<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">99<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Einsteini<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Es<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">252<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">100<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Fermi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Fm<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">257<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">101<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mendelevi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Md<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">258<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">102<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nobeli<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">No<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">259\u00a0<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">103<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Lawrenci<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Lr<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">262<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">104<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rutherfordi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rf<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">267<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">105<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Dubni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Db<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">268<\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">106<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Seaborgi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Sg<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[269]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">107<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bohri<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Bh<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[270]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">108<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Hassi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Hs<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[269]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">109<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Meitneri<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mt<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[278]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">110<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Darmstadti<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ds<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[281]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">111<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Roentgeni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Rg<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[281]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">112<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Copernixi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Cn<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[285]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">113<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nihoni<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Nh<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[286]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">114<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Flerovi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Fl<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[289]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">115<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Moscovi<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Mc<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[288]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">116<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Livermori<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Lv<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[293]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">117<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Tennessine<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Ts<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[294]\n<\/td>\n<\/tr>\n<tr style=\"height: 54.3906px\">\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">118<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Oganesson<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">Og<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;height: 54.3906px;text-align: center;background-color: #f8cac6\">\n<p dir=\"ltr\">[294]\n<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">Ngo\u00e0i b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 \u1edf tr\u00ean, b\u1ea1n h\u00e3y ghi nh\u1edb th\u00eam kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t s\u1ed1 nh\u00f3m axit, g\u1ed1c axit ph\u1ed5 bi\u1ebfn d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<table style=\"border-collapse: collapse;width: 100%;margin-left: auto;margin-right: auto\" border=\"0.5px\">\n<tr style=\"background-color: #fbeeb8\">\n<td style=\"text-align: center;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">STT<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">T\u00ean nh\u00f3m<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">CTHH<\/p>\n<\/td>\n<td style=\"text-align: center;border: 0.5px solid #4e4c50\">\n<p dir=\"ltr\">Nguy\u00ean t\u1eed kh\u1ed1i<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">1<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidroxit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-OH<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">17<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">2<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Clorua<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-Cl<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">35.5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Bromua<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-Br<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">80<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Iotdua<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-I<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">127<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">5<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Nitrit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-NO2<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">46<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">6<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Nitrat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-NO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">62<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">7<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Sunfua<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=S<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">32<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">8<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Sunfit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=SO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">80<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">9<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Sunfat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=SO4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">96<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">10<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Cacbonat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=CO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">60<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">11<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Photphit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">\u2261PO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">79<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">12<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Photphat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">\u2261PO4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">95<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">13<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidrophotphat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=HPO4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">96<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">14<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Dihidrophotphat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-H2PO4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">97<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">15<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidrophotphit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=HPO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">80<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">16<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Dihidrophotphit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-H2PO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">81<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">17<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidro Sunfat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-HSO4<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">97<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">18<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidrosunfit<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-HSO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">81<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">19<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidrosunfua<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-HS<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">33<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">20<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Hidrocacbonat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">-HCO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">61<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">21<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">Silicat<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">=SiO3<\/p>\n<\/td>\n<td style=\"border: 0.5px solid #4e4c50;background-color: #f8cac6;text-align: center\">\n<p dir=\"ltr\">76<\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Huong_dan_cach_tinh_khoi_luong_thuc_cua_nguyen_tu\"><\/span>H\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh kh\u00f4\u0301i l\u01b0\u01a1\u0323ng th\u01b0\u0323c cu\u0309a nguy\u00ean t\u01b0\u0309<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li class=\"MsoNormal\">B\u01b0\u01a1\u0301c 1:\u00a0N\u1eafm r\u00f5 1\u0111vC = 1,6605.10-27\u00a0kg =1,6605.10-24\u00a0g<\/li>\n<li class=\"MsoNormal\">B\u01b0\u01a1\u0301c 2:\u00a0Tra c\u1ee9u b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a nh\u1eefng nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc. Ch\u1eb3ng h\u1ea1n nguy\u00ean t\u00f4\u0301 A co\u0301 nguy\u00ean t\u1eed kh\u1ed1i la\u0300 a, t\u01b0\u0301c A = a.<\/li>\n<li class=\"MsoNormal\">B\u01b0\u01a1\u0301c 3:\u00a0Kh\u00f4\u0301i l\u01b0\u01a1\u0323ng th\u01b0\u0323c cu\u0309a nguy\u00ean t\u1eed A l\u00e0: mA = a . 0,166 .10-23 g. C\u00f2n kh\u1ed1i l\u01b0\u1ee3ng th\u1ef1c c\u1ee7a nguy\u00ean t\u1eed A l\u00e0: mA\u00a0= a . 0,166 .10-23\u00a0g<\/li>\n<\/ul>\n<p class=\"MsoNormal\"><em>V\u00ed d\u1ee5: Cho 16g oxy. X\u00e1c \u0111\u1ecbnh nguy\u00ean t\u1eed oxy c\u00f3 trong 16g oxy v\u00e0 t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng nguy\u00ean t\u1eed \u0111\u00f3.<\/em><\/p>\n<p class=\"MsoNormal\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i:<\/em><\/p>\n<p class=\"MsoNormal\"><em>\u00c1p d\u1ee5ng c\u00f4ng th\u1ee9c t\u00ednh nguy\u00ean t\u1eed kh\u1ed1i, ta c\u00f3:<\/em><\/p>\n<p class=\"MsoNormal\"><em>S\u00f4\u0301 nguy\u00ean t\u01b0\u0309 = Kh\u00f4\u0301i l\u01b0\u01a1\u0323ng ti\u0301nh b\u0103\u0300ng g\/Kh\u00f4\u0301i l\u01b0\u01a1\u0323ng ti\u0301nh b\u0103\u0300ng g cu\u0309a 1 nguy\u00ean t\u01b0\u0309<\/em><\/p>\n<p class=\"MsoNormal\"><em>=&gt; S\u00f4\u0301 nguy\u00ean t\u01b0\u0309 trong 16g oxi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh la\u0300: 16 \/ (16.1,6605.10-24) = 6,02.10-23<\/em><\/p>\n<p><em> <\/em><\/p>\n<p class=\"MsoNormal\"><em>1mol oxi co\u0301 kh\u00f4\u0301i l\u01b0\u01a1\u0323ng 16g = 16(\u0111vC) th\u00ec 1 nguy\u00ean t\u01b0\u0309 oxi s\u1ebd co\u0301 kh\u00f4\u0301i l\u01b0\u01a1\u0323ng l\u00e0 16.1,6605.10\u00a0-24 g<\/em><\/p>\n<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Meo_ghi_nho_bang_nguyen_tu_khoi_hoa_hoc_don_gian_nhanh_chong\"><\/span>M\u1eb9o ghi nh\u1edb b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i h\u00f3a h\u1ecdc \u0111\u01a1n gi\u1ea3n, nhanh ch\u00f3ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00f3 \u0111\u1ebfn h\u01a1n 100 nguy\u00ean t\u1ed1 n\u00ean vi\u1ec7c ghi nh\u1edb l\u00e0 kh\u00f4ng d\u1ec5 d\u00e0ng. Th\u1ef1c t\u1ebf, ch\u00fang ta n\u00ean \u01b0u ti\u00ean h\u1ecdc thu\u1ed9c nh\u1eefng nguy\u00ean t\u1ed1 ph\u1ed5 bi\u1ebfn tr\u01b0\u1edbc sau \u0111\u00f3 m\u1edf r\u1ed9ng nh\u1eefng nguy\u00ean t\u1ed1 \u00edt g\u1eb7p h\u01a1n. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o \u0111\u1ec3 b\u1ea1n ghi nh\u1edb b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i h\u00f3a h\u1ecdc \u0111\u01a1n gi\u1ea3n:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/nguyen-tu-khoi-la-gi-6_(1).jpg\" alt=\"M\u1eb9o nh\u1edb b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc. (\u1ea2nh: S\u01b0u t\u1ea7m Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">Th\u01b0\u1eddng xuy\u00ean l\u00e0m b\u00e0i t\u1eadp h\u00f3a h\u1ecdc: \u0110\u00e2y l\u00e0 c\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 c\u00e1c b\u1ea1n th\u1ef1c h\u00e0nh v\u00e0 ghi nh\u1edb ki\u1ebfn th\u1ee9c d\u1ec5 d\u00e0ng, trong \u0111\u00f3 c\u00f3 nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a m\u1ed9t nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc c\u1ee5 th\u1ec3.<\/li>\n<li dir=\"ltr\">H\u1ecdc qua b\u00e0i ca nguy\u00ean t\u1eed kh\u1ed1i: \u0110\u00e2y l\u00e0 nh\u1eefng b\u00e0i c\u00f3 v\u1ea7n, nh\u1ecbp \u0111i\u1ec7u gi\u00fap b\u1ea1n ghi nh\u1edb b\u1ea3ng nguy\u00ean t\u1eed kh\u1ed1i d\u1ec5 d\u00e0ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 3 <em>b\u00e0i ca nguy\u00ean t\u1eed kh\u1ed1i <\/em>\u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o:<\/li>\n<\/ul>\n<p dir=\"ltr\">B\u00e0i s\u1ed1 1:\u00a0<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>&#8220;Hidro l\u00e0 1<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>12 c\u1ed9t Cacbon<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nit\u01a1 14 tr\u00f2n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Oxi tr\u0103ng 16<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Natri hay l\u00e1u t\u00e1u<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u1ea3y t\u00f3t l\u00ean 23<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Khi\u1ebfn Magie g\u1ea7n nh\u00e0<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ng\u1eadm ng\u00f9i nh\u1eadn 24<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>27 nh\u00f4m la l\u1edbn<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u01b0u hu\u1ef3nh gi\u00e0nh 32<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Kh\u00e1c ng\u01b0\u1eddi th\u1eadt l\u00e0 t\u00e0i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Clo 35 r\u01b0\u1ee1i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Kali th\u00edch 39<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Canxi ti\u1ebfp 40<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>55 Mangan c\u01b0\u1eddi<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>S\u1eaft \u0111\u00e2y r\u1ed3i 56<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>64 \u0111\u1ed3ng n\u1ed5i c\u00e1u<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>V\u00ec k\u00e9m k\u1ebdm 65<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>80 brom n\u1eb1m<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Xa b\u1ea1c 108<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Bari th\u00ec ch\u00e1n ng\u00e1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>137 \u00edch chi<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>K\u00e9m ng\u01b0\u1eddi ta c\u00f2n g\u00ec<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Thu\u1ef7 ng\u00e2n 201<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>C\u00f2n l\u1ea1i ch\u00ec m\u1ed9t c\u1ed9t<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>207 th\u1eadt to<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Heli th\u00ec bu\u1ed3n so<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>M\u00ecnh \u0111\u00e2y \u0111\u01b0\u1ee3c c\u00f3 4<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Liti th\u1eadt khi\u00eam t\u1ed1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>S\u1ed1 7 l\u00e0 \u0111\u01b0\u1ee3c r\u1ed3i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>S\u1ed1 9 Beri ng\u1ed3i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Tr\u00eau b\u1ea1n Bo 11<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>19 \u0111\u00e2y ch\u1ebft ng\u1ed9t<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Flo \u0111ang than phi\u1ec1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Neon th\u00ec c\u01b0\u1eddi hi\u1ec1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>T\u1edb 20 tr\u00f2n ch\u1eb5n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Silic ng\u01b0\u1eddi \u0111\u1ee9ng \u0111\u1eafn<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u00e2n 28 \u0111\u1eb9p ko<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Photpho \u0111\u1ecf h\u1ed3ng h\u1ed3ng<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u1eadn 31 cu\u1ed1i th\u00e1ng<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Agon c\u01b0\u1eddi trong s\u00e1ng<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>39,9 \u0111\u00e2y<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>K\u1ebft th\u00fac b\u00e0i ca n\u00e0y<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Crom 52 \u0111\u1ea5y&#8221;<\/em><\/p>\n<p dir=\"ltr\">B\u00e0i s\u1ed1 2:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>&#8220;Hi\u0111ro s\u1ed1 1 kh\u1edfi \u0111i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Liti s\u1ed1 7 ng\u1ea1i g\u00ec ch\u00ed trai<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Cacbon b\u1ebfn n\u01b0\u1edbc 12<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nit\u01a1 14 tu\u1ed5i ng\u00e0y hoa ni\u00ean<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Oxi 16 khu\u00f4n vi\u00ean<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Flo 19 l\u00f2ng ri\u00eang v\u01b0\u01a1ng s\u1ea7u<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Natri 23 xu\u00e2n \u0111\u1ea7u<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Magie 24 mong c\u1ea7u mai sau<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u00f4m th\u1eddi 27 ch\u00ed cao<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Silic 28 l\u00f2ng n\u00e0o l\u1ea1i qu\u00ean<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Photpho 31 l\u1eadp n\u00ean<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>32 nguy\u00ean t\u1eed kh\u1ed1i t\u00ean L\u01b0u hu\u1ef3nh<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Clo 35,5 t\u1ef1 m\u00ecnh<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Kali 39 nh\u1ee5c vinh ch\u1eb3ng m\u00e0n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Canxi 40 th\u1eb3ng h\u00e0ng<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>52 Crom chu\u1ed7i ng\u00e0y t\u00e0n ph\u1ea3i lo<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Mangan song ng\u0169 (55) so \u0111o<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>S\u1eaft th\u1eddi 56\u00a0<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Coban 59 c\u1ed3ng k\u1ec1nh<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>K\u1ebdm \u0111\u1ed3ng 60 l\u1eadp n\u1ec1n c\u00f3 d\u01b0<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>\u0110\u1ed3ng 63,6<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>K\u1ebdm 65,4<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Brom 80 ch\u00edn th\u01b0 ri\u00eang ph\u1ea7n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Stronti 88 \u0111\u1ed3ng c\u00e2n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>B\u1ea1c 108 t\u0103ng l\u1ea7n s\u1ed1 sai<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Catmi m\u1ed9t b\u00e1ch m\u01b0\u1eddi hai(112)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Thi\u1ebfc tr\u0103m m\u01b0\u1eddi ch\u00edn(119) m\u1ed9t mai cu\u1ed9c \u0111\u1eddi<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Iot 127 ch\u1eb3ng r\u1eddi<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Bari 137 s\u1ee9c th\u1eddi bao l\u00e2m<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>B\u1ea1ch kim 195<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>V\u00e0ng 197 ti\u1ebfng t\u0103ng ch\u1eb3ng v\u1eeba<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Th\u1ee7y ng\u00e2n 2 b\u00e1ch ph\u1ea9y 0 th\u1eeba (200,0)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ch\u00ec 2 linh 7 (207) ch\u1eb3ng \u01b0a l\u1eeda h\u1ed3ng<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ra\u0111i 226 mong<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Bismut 2 tr\u0103m linh 9 c\u1ee9 tr\u00f4ng c\u1eady m\u00ecnh (209)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>B\u00e0i th\u01a1 nguy\u00ean t\u1eed ph\u00e2n minh<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u00f2ng n\u00e0y \u0111\u00e3 quy\u1ebft t\u1ef1 tin h\u1ecdc h\u00e0n&#8221;<\/em><\/p>\n<p dir=\"ltr\">B\u00e0i s\u1ed1 3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>&#8220;Hai ba Natri (Na=23)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u1edb ghi cho r\u00f5<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Kali ch\u1eb3ng kh\u00f3<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ba ch\u00edn d\u1ec5 d\u00e0ng (K=39)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Khi nh\u1eafc \u0111\u1ebfn V\u00e0ng<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>M\u1ed9t tr\u0103m ch\u00edn b\u1ea3y (Au=197)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Oxi g\u00e2y ch\u00e1y<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ch\u1ec9 m\u01b0\u1eddi s\u00e1u th\u00f4i (O=16)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>C\u00f2n B\u1ea1c d\u1ec5 r\u1ed3i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>M\u1ed9t tr\u0103m l\u1ebb t\u00e1m (Ag =108)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>S\u1eaft m\u00e0u tr\u1eafng x\u00e1m<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>N\u0103m s\u00e1u c\u00f3 g\u00ec (Fe=56)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ngh\u0129 t\u1edbi Beri<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u1edb ngay l\u00e0 ch\u00edn (Be=9)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>G\u1ea5p ba l\u1ea7n ch\u00edn<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u00e0 c\u1ee7a anh Nh\u00f4m (Al=27)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>C\u00f2n c\u1ee7a Cr\u00f4m<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u00e0 n\u0103m hai \u0111\u00f3 (Cr=52)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>C\u1ee7a \u0110\u1ed3ng \u0111\u00e3 r\u00f5<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u00e0 s\u00e1u m\u01b0\u01a1i t\u01b0 (Cu =64)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Photpho kh\u00f4ng d\u01b0<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u00e0 ba m\u01b0\u01a1i m\u1ed1t (P=31)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Hai tr\u0103m l\u1ebb m\u1ed9t<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u00e0 c\u1ee7a Th\u1ee7y Ng\u00e2n (Hg=201)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ch\u1eb3ng ph\u1ea3i ng\u1ea1i ng\u1ea7n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nit\u01a1 m\u01b0\u1eddi b\u1ed1n (N=14)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Hai l\u1ea7n m\u01b0\u1eddi b\u1ed1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Silic phi kim (Si=28)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Can xi d\u1ec5 t\u00ecm<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>B\u1ed1n m\u01b0\u01a1i v\u1eeba ch\u1eb5n (Ca=40) Mangan v\u1eeba v\u1eb7n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Con s\u1ed1 n\u0103m l\u0103m (Mn=55)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ba l\u0103m ph\u1ea9y n\u0103m<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Clo ch\u1ea5t kh\u00ed (Cl=35.5)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ph\u1ea3i nh\u1edb cho k\u1ef9<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>K\u1ebdm l\u00e0 s\u00e1u l\u0103m (Zn=65)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u01b0u hu\u1ef3nh ch\u01a1i kh\u0103m<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ba hai \u0111\u00e3 r\u00f5 (S=32)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ch\u1eb3ng c\u00f3 g\u00ec kh\u00f3<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Cacbon m\u01b0\u1eddi hai (C=12)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Bari h\u01a1i d\u00e0i<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>M\u1ed9t tr\u0103m ba b\u1ea3y (Ba=137)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ph\u00e1t n\u1ed5 khi ch\u00e1y<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>C\u1ea9n th\u1eadn v\u1eabn h\u01a1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Kh\u1ed1i l\u01b0\u1ee3ng gi\u1ea3n \u0111\u01a1n<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Hi\u0111r\u00f4 l\u00e0 m\u1ed9t (H=1)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>C\u00f2n c\u1eadu I\u1ed1t<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ai h\u1ecfi n\u00f3i ngay<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>M\u1ed9t tr\u0103m hai b\u1ea3y (I=127)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>N\u1ebfu hai l\u1ebb b\u1ea3y<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>L\u1ea1i c\u1ee7a anh Ch\u00ec (Pb =207)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Br\u00f4m nh\u1edb ghi<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>T\u00e1m m\u01b0\u01a1i \u0111\u00e3 t\u1ecf (Br = 80)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Nh\u01b0ng v\u1eabn c\u00f2n \u0111\u00f3<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Magi\u00ea hai t\u01b0 (Mg=24)<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Ch\u1eb3ng ph\u1ea3i ch\u1ea7n ch\u1eeb<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>Flo m\u01b0\u1eddi ch\u00edn (F=19).<\/em><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><em>(Ngu\u1ed3n: S\u01b0u t\u1ea7m Internet)&#8221;<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ung_dung_bai_hoc_ve_nguyen_tu_khoi\"><\/span>\u1ee8ng d\u1ee5ng b\u00e0i h\u1ecdc v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Th\u00f4ng qua b\u00e0i h\u1ecdc v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i ch\u00fang ta c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng b\u00e0i t\u1eadp \u0111\u01a1n gi\u1ea3n nh\u01b0:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">X\u00e1c \u0111\u1ecbnh m\u1ed9t nguy\u00ean t\u1ed1 th\u00f4ng qua nguy\u00ean t\u1eed kh\u1ed1i: V\u00ed d\u1ee5 t\u00ecm m\u1ed9t nguy\u00ean t\u1ed1 A bi\u1ebft nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a A n\u1eb7ng g\u1ea5p 4 l\u1ea7n oxi.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">X\u00e1c \u0111\u1ecbnh nguy\u00ean t\u1ed1 trong h\u1ee3p ch\u1ea5t: \u0110\u1ec1 b\u00e0i cho bi\u1ebft t\u1ed5ng nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 trong m\u1ed9t h\u1ee3p ch\u1ea5t b\u1ea5t k\u1ef3 v\u00e0 y\u00eau c\u1ea7u x\u00e1c \u0111\u1ecbnh nguy\u00ean t\u1ed1 c\u00f2n thi\u1ebfu trong h\u1ee3p ch\u1ea5t \u0111\u00f3. \u0110\u1ed1i v\u1edbi d\u1ea1ng b\u00e0i t\u1eadp n\u00e0y, b\u1ea1n ch\u1ec9 c\u1ea7n l\u1ea5y t\u1ed5ng c\u00e1c nguy\u00ean t\u1eed kh\u1ed1i \u0111\u00f3 tr\u1eeb \u0111i t\u1ed5ng nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a nh\u1eefng nguy\u00ean t\u1ed1 \u0111\u00e3 bi\u1ebft \u0111\u1ec3 t\u00ednh nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a nguy\u00ean t\u1ed1 c\u1ea7n t\u00ecm v\u00e0 x\u00e1c \u0111\u1ecbnh nguy\u00ean t\u1ed1 \u0111\u00f3.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_cung_co_ve_nguyen_tu_khoi\"><\/span>B\u00e0i t\u1eadp c\u1ee7ng c\u1ed1 v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">B\u00e0i t\u1eadp th\u1ef1c h\u00e0nh v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i s\u1ebd gi\u00fap cho c\u00e1c b\u1ea1n h\u1ecdc sinh c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c v\u1eeba h\u1ecdc, n\u1eafm ch\u1eafc b\u00e0i h\u01a1n, t\u1ea1o n\u1ec1n t\u1ea3ng ki\u1ebfn th\u1ee9c t\u1ed1t \u0111\u1ec3 h\u1ecdc c\u00e1c l\u00fd thuy\u1ebft trong c\u00e1c b\u00e0i ti\u1ebfp theo.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/nguyen-tu-khoi-la-gi-10.jpg\" alt=\"Th\u1ef1c h\u00e0nh b\u00e0i t\u1eadp v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 1: Bi\u1ebft nguy\u00ean t\u1eed nh\u00f4m c\u00f3 13 proton, 14 n\u01a1tron. Kh\u1ed1i l\u01b0\u1ee3ng t\u00ednh b\u1eb1ng gam c\u1ee7a m\u1ed9t nguy\u00ean t\u1eed nh\u00f4m l\u00e0<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. 5,32.10-23g.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. 6,02.10-23g.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C. 4,48.10-23g.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. 3,99.10-23g.<\/p>\n<p class=\"MsoNormal\">B\u00e0i 2: H\u00e3y so s\u00e1nh xem nguy\u00ean t\u1eed magie n\u1eb7ng hay nh\u1eb9 h\u01a1n bao nhi\u00eau l\u1ea7n so v\u1edbi nguy\u00ean t\u1eed cacbon?<\/p>\n<p class=\"MsoNormal\">B\u00e0i 3: Nguy\u00ean t\u1eed X n\u1eb7ng g\u1ea5p 4 l\u1ea7n nguy\u00ean t\u1eed nit\u01a1. T\u00ednh nguy\u00ean t\u1eed kh\u1ed1i c\u1ee7a X v\u00e0 cho bi\u1ebft X thu\u1ed9c nguy\u00ean t\u1ed1 n\u00e0o?<\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 4: Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t nguy\u00ean t\u1eed cacbon l\u00e0 19,9265. 10-23\u00a0gam. V\u1eady ta c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 1 \u0111vC l\u00e0<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. 8,553. 10-23\u00a0g.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. 2,6605. 10-23\u00a0g.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C. 0,16605. 10-23\u00a0g.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. 18,56. 10-23\u00a0g.<\/p>\n<p>B\u00e0i 5: Bi\u1ebft r\u1eb1ng b\u1ed1n nguy\u00ean t\u1eed Mg n\u1eb7ng b\u1eb1ng ba nguy\u00ean t\u1eed c\u1ee7a nguy\u00ean t\u1ed1 X. V\u1eady t\u00ean c\u1ee7a nguy\u00ean t\u1ed1 X l\u00e0<\/p>\n<p>A. L\u01b0u hu\u1ef3nh.<\/p>\n<p>B. S\u1eaft.<\/p>\n<p>C. Nit\u01a1.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. Can xi.<\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 6: Kh\u1ed1i l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a m\u1ed9t ph\u00e2n t\u1eed H2O l\u00e0<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. 18 \u0111vC.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. 18 gam.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C.34 \u0111vC.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. 18kg.<\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 7: Bi\u1ebft nguy\u00ean t\u1eed nit\u01a1 g\u1ed3m c\u00f3 7 proton, 7 n\u01a1tron v\u00e0 7 electron. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a to\u00e0n nguy\u00ean t\u1eed nit\u01a1 l\u00e0<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. 14 gam.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. 21 gam.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C. 2,34. 10-23\u00a0gam.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. 2,34. 10-27\u00a0gam.<\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 8: Tr\u01b0\u1eddng h\u1ee3p n\u00e0o \u0111\u01b0\u1edbi \u0111\u00e2y c\u00f3 s\u1ef1 t\u01b0\u01a1ng \u1ee9ng gi\u1eefa h\u1ea1t c\u01a1 b\u1ea3n v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 \u0111i\u1ec7n t\u00edch c\u1ee7a ch\u00fang?<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. proton, m = 0,00055u, q = 1+.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. n\u01a1tron, m = 1,0086u, q = 0.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C. electron, m = 1,0073u, q =1-.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. proton, m = 1,0073u, q = 1-.<\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 9: M\u1ed9t nguy\u00ean t\u1eed ch\u1ec9 c\u00f3 1 electron \u1edf v\u1ecf nguy\u00ean t\u1eed. H\u1ea1t nh\u00e2n nguy\u00ean t\u1eed c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng x\u1ea5p x\u1ec9 3u. S\u1ed1 h\u1ea1t proton v\u00e0 h\u1ea1t n\u01a1tron trong h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed n\u00e0y l\u1ea7n l\u01b0\u1ee3t l\u00e0<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. 1 v\u00e0 0.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. 1 v\u00e0 2.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C. 1 v\u00e0 3.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. 3 v\u00e0 0.<\/p>\n<p style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B\u00e0i 10: Hai nguy\u00ean t\u1eed Mg n\u1eb7ng g\u1ea5p m\u1ea5y l\u1ea7n nguy\u00ean t\u1eed O?<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">A. 1.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">B. 2.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">C. 3.<\/p>\n<p class=\"MsoNormal\" style=\"text-align: justify;line-height: 18.0pt;margin: 0in 2.4pt 12.0pt 2.4pt\">D. 4.<\/p>\n<\/p>\n<p dir=\"ltr\">Ngo\u00e0i b\u00e0i h\u1ecdc v\u1ec1 nguy\u00ean t\u1eed kh\u1ed1i, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef c\u00f2n t\u1ed5ng h\u1ee3p r\u1ea5t nhi\u1ec1u ki\u1ebfn th\u1ee9c m\u00f4n h\u1ecdc h\u1eefu \u00edch trong chuy\u00ean m\u1ee5c n\u00e0y. C\u00e1c b\u1ea1n h\u00e3y gh\u00e9 \u0111\u1ecdc website c\u1ee7a Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 \u00f4n t\u1eadp ki\u1ebfn th\u1ee9c v\u00e0 t\u00ecm b\u00e0i t\u1eadp th\u1ef1c h\u00e0nh hi\u1ec7u qu\u1ea3 nh\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nguy\u00ean t\u1eed kh\u1ed1i l\u00e0 ki\u1ebfn th\u1ee9c quan tr\u1ecdng m\u00e0 c\u00e1c b\u1ea1n h\u1ecdc sinh \u0111\u01b0\u1ee3c ti\u1ebfp c\u1eadn ngay t\u1eeb nh\u1eefng b\u00e0i h\u1ecdc \u0111\u1ea7u ti\u00ean trong ch\u01b0\u01a1ng tr\u00ecnh c\u1ee7a b\u1ed9 m\u00f4n H\u00f3a h\u1ecdc c\u1ea5p THCS. Trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd t\u1ed5ng h\u1ee3p nh\u1eefng l\u00fd thuy\u1ebft c\u01a1 b\u1ea3n c\u00f9ng b\u00e0i&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-21819","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21819","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=21819"}],"version-history":[{"count":1,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21819\/revisions"}],"predecessor-version":[{"id":25387,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/21819\/revisions\/25387"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=21819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=21819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=21819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}