{"id":36397,"date":"2025-11-07T18:05:58","date_gmt":"2025-11-07T18:05:58","guid":{"rendered":"https:\/\/onlineexammaker.com\/kb\/?p=36397"},"modified":"2025-12-09T06:22:01","modified_gmt":"2025-12-09T06:22:01","slug":"15-periodic-table-quiz-questions-and-answers-11","status":"publish","type":"post","link":"https:\/\/onlineexammaker.com\/kb\/vi\/15-periodic-table-quiz-questions-and-answers-11\/","title":{"rendered":"2026 | 15 c\u00e2u h\u1ecfi v\u00e0 \u0111\u00e1p \u00e1n c\u00e2u h\u1ecfi v\u1ec1 b\u1ea3ng tu\u1ea7n ho\u00e0n"},"content":{"rendered":"<p>B\u1ea3ng tu\u1ea7n ho\u00e0n l\u00e0 b\u1ea3ng s\u1eafp x\u1ebfp c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n c\u1ee7a s\u1ed1 nguy\u00ean t\u1eed. C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3ng tu\u1ea7n ho\u00e0n g\u1ed3m c\u00e1c h\u00e0ng v\u00e0 c\u1ed9t, trong \u0111\u00f3 m\u1ed7i h\u00e0ng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t chu k\u1ef3 v\u00e0 m\u1ed7i c\u1ed9t \u0111\u1ea1i di\u1ec7n cho m\u1ed9t nh\u00f3m. M\u1ed7i \u00f4 trong b\u1ea3ng ch\u1ee9a th\u00f4ng tin v\u1ec1 m\u1ed9t nguy\u00ean t\u1ed1, bao g\u1ed3m t\u00ean nguy\u00ean t\u1ed1, k\u00fd hi\u1ec7u h\u00f3a h\u1ecdc, s\u1ed1 nguy\u00ean t\u1eed, v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc.<\/p>\n<p>C\u00e1c nguy\u00ean t\u1ed1 trong b\u1ea3ng tu\u1ea7n ho\u00e0n \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo c\u1ea5u tr\u00fac \u0111i\u1ec1u ch\u1ebf c\u1ee7a ch\u00fang, d\u1ef1a tr\u00ean c\u00e1c thu\u1ed9c t\u00ednh h\u00f3a h\u1ecdc nh\u01b0 s\u1ed1 nguy\u00ean t\u1eed, kh\u1ed1i l\u01b0\u1ee3ng nguy\u00ean t\u1eed, v\u00e0 c\u1ea5u tr\u00fac electron. B\u1ea3ng tu\u1ea7n ho\u00e0n gi\u00fap c\u00e1c nh\u00e0 h\u00f3a h\u1ecdc v\u00e0 nh\u00e0 khoa h\u1ecdc hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 t\u00ednh ch\u1ea5t v\u00e0 m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c nguy\u00ean t\u1ed1, c\u0169ng nh\u01b0 d\u1ef1 \u0111o\u00e1n c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 ch\u01b0a \u0111\u01b0\u1ee3c kh\u00e1m ph\u00e1.<\/p>\n<p>M\u1ed7i h\u00e0ng trong b\u1ea3ng tu\u1ea7n ho\u00e0n th\u1ec3 hi\u1ec7n m\u1ed9t chu k\u1ef3 c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1, trong khi m\u1ed7i c\u1ed9t th\u1ec3 hi\u1ec7n m\u1ed9t nh\u00f3m nguy\u00ean t\u1ed1 c\u00f3 c\u00f9ng c\u00e1c t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc. C\u00e1c nguy\u00ean t\u1ed1 trong c\u00f9ng m\u1ed9t nh\u00f3m th\u01b0\u1eddng c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 v\u00e0 th\u01b0\u1eddng c\u00f3 c\u00f9ng c\u1ea5u tr\u00fac electron trong l\u1edbp valence c\u1ee7a ch\u00fang.<\/p>\n<p>B\u1ea3ng tu\u1ea7n ho\u00e0n cung c\u1ea5p m\u1ed9t c\u00e1ch t\u1ed5 ch\u1ee9c ti\u1ec7n l\u1ee3i \u0111\u1ec3 xem x\u00e9t v\u00e0 nghi\u00ean c\u1ee9u c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc v\u00e0 c\u00e1c m\u1eabu ph\u00e2n b\u1ed1 c\u1ee7a ch\u00fang trong t\u1ef1 nhi\u00ean v\u00e0 trong c\u00e1c h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc.<\/p>\n<h4> \u0110\u1ec1 c\u01b0\u01a1ng b\u00e0i vi\u1ebft<\/h4>\n<ul class=\"article_list\">\n<li><a href=\"#a\">Ph\u1ea7n 1: OnlineExmaker &#8211; T\u1ea1o v\u00e0 chia s\u1ebb m\u1ed9t b\u00e0i ki\u1ec3m tra v\u1edbi AI t\u1ef1 \u0111\u1ed9ng<\/a><\/li>\n<li><a href=\"#1\">Ph\u1ea7n 2: 15 c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m b\u1ea3ng tu\u1ea7n ho\u00e0n<\/a><\/li>\n<li> <a href=\"#2\">Ph\u1ea7n 3: T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m b\u1eb1ng AI Quiz Generator<\/a><\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2023\/08\/Periodic-table-quiz.webp\" alt=\"\" \/><\/p>\n<h3 id=\"a\">Ph\u1ea7n 1: OnlineExmaker &#8211; T\u1ea1o v\u00e0 chia s\u1ebb m\u1ed9t b\u00e0i ki\u1ec3m tra v\u1edbi AI t\u1ef1 \u0111\u1ed9ng <\/h3>\n<p>OnlineExammaker l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng \u0111\u00e1nh gi\u00e1 h\u1ed7 tr\u1ee3 AI m\u1ea1nh m\u1ebd \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u00e1nh gi\u00e1 ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 b\u1ea3ng tu\u1ea7n ho\u00e0n t\u1ef1 \u0111\u1ed9ng. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c nh\u00e0 gi\u00e1o d\u1ee5c, gi\u1ea3ng vi\u00ean, doanh nghi\u1ec7p v\u00e0 b\u1ea5t c\u1ee9 ai mu\u1ed1n t\u1ea1o ra c\u00e1c c\u00e2u \u0111\u1ed1 h\u1ea5p d\u1eabn m\u00e0 kh\u00f4ng d\u00e0nh h\u00e0ng gi\u1edd \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c c\u00e2u h\u1ecfi theo c\u00e1ch th\u1ee7 c\u00f4ng. T\u00ednh n\u0103ng Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI cho ph\u00e9p b\u1ea1n nh\u1eadp m\u1ed9t ch\u1ee7 \u0111\u1ec1 ho\u1eb7c chi ti\u1ebft c\u1ee5 th\u1ec3 v\u00e0 n\u00f3 t\u1ef1 \u0111\u1ed9ng t\u1ea1o ra nhi\u1ec1u lo\u1ea1i c\u00e2u h\u1ecfi.<\/p>\n<p><strong> C\u00e1c t\u00ednh n\u0103ng h\u00e0ng \u0111\u1ea7u \u0111\u1ec3 t\u1ed5 ch\u1ee9c \u0111\u00e1nh gi\u00e1: <\/strong><br \/>\n\u25cf Ng\u0103n ch\u1eb7n gian l\u1eadn b\u1eb1ng c\u00e1ch ch\u1ecdn ng\u1eabu nhi\u00ean c\u00e1c c\u00e2u h\u1ecfi ho\u1eb7c thay \u0111\u1ed5i th\u1ee9 t\u1ef1 c\u00e2u h\u1ecfi, v\u00ec v\u1eady ng\u01b0\u1eddi h\u1ecdc kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00f9ng m\u1ed9t b\u1ed9 c\u00e2u h\u1ecfi m\u1ed7i l\u1ea7n.<br \/>\n\u25cf H\u1ecdc sinh l\u1edbp AI \u0111\u1ec3 ph\u00e2n lo\u1ea1i hi\u1ec7u qu\u1ea3 c\u00e1c c\u00e2u \u0111\u1ed1 v\u00e0 b\u00e0i t\u1eadp, cung c\u1ea5p nh\u1eadn x\u00e9t n\u1ed9i tuy\u1ebfn, ghi \u0111i\u1ec3m t\u1ef1 \u0111\u1ed9ng v\u00e0 &#8220;\u0111i\u1ec3m fudge&#8221; \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh th\u1ee7 c\u00f4ng.<br \/>\n\u25cf Nh\u00fang c\u00e1c c\u00e2u h\u1ecfi tr\u00ean c\u00e1c trang web, blog ho\u1eb7c chia s\u1ebb qua email, ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i (Facebook, Twitter) ho\u1eb7c li\u00ean k\u1ebft tr\u1ef1c ti\u1ebfp.<br \/>\n\u25cf X\u1eed l\u00fd th\u1eed nghi\u1ec7m quy m\u00f4 l\u1edbn (h\u00e0ng ng\u00e0n b\u00e0i ki\u1ec3m tra\/h\u1ecdc k\u1ef3) m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ee5 thu\u1ed9c Internet, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u00e1m m\u00e2y.<\/p>\n<div class=\"embed_video_blog\">\n<div class=\"embed-responsive embed-responsive-16by9\" style=\"margin-bottom:16px;\">\n <iframe class=\"embed-responsive-item\" src=\"https:\/\/www.youtube.com\/embed\/bv7AAAyFOo4\"><\/iframe>\n<\/div>\n<\/div>\n<div class=\"getstarted-container\">\n<p style=\"margin-bottom: 13px;\">T\u1ea1o b\u00e0i ki\u1ec3m tra\/b\u00e0i ki\u1ec3m tra ti\u1ebfp theo c\u1ee7a b\u1ea1n v\u1edbi OnlineExamMaker<\/p>\n<div class=\"blog_double_btn clearfix\">\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/sign-up.html?refer=blog_btn\"> B\u1eaft \u0111\u1ea7u mi\u1ec5n ph\u00ed<\/a><\/div>\n<div class=\"p-style-b\">SAAS, mi\u1ec5n ph\u00ed m\u00e3i m\u00e3i<\/div>\n<\/div>\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/lan.html?refer=blog_btn\">On-Premise: T\u1ea3i xu\u1ed1ng<\/a><\/div>\n<div class=\"p-style-b\">Quy\u1ec1n s\u1edf h\u1eefu d\u1eef li\u1ec7u 100%<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3 id=\"1\"> Ph\u1ea7n 2: 15 c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m b\u1ea3ng tu\u1ea7n ho\u00e0n<\/h3>\n<p><button type=\"button\" id=\"copyquestionsBtn\" onClick=\"myFunction()\">Sao ch\u00e9p c\u00e2u h\u1ecfi \u0111\u1ed1<\/button><\/p>\n<div id=\"copy_questions\">\n<p>1. Nguy\u00ean t\u1ed1 n\u00e0o c\u00f3 k\u00fd hi\u1ec7u h\u00f3a h\u1ecdc l\u00e0 &#8220;Fe&#8221;?<br \/>\n   a) S\u1eaft<br \/>\n   b) Hidro<br \/>\n   c) \u0110\u1ed3ng<br \/>\n   d) Oxy<br \/>\n   \u0110\u00e1p \u00e1n: a) S\u1eaft<\/p>\n<p>2. Nguy\u00ean t\u1ed1 n\u00e0o c\u00f3 s\u1ed1 nguy\u00ean t\u1eed b\u1eb1ng 6?<br \/>\n   a) Carbon<br \/>\n   b) Hydrogen<br \/>\n   c) Oxygen<br \/>\n   d) Nitrogen<br \/>\n   \u0110\u00e1p \u00e1n: a) Carbon<\/p>\n<p>3. Nh\u00f3m nguy\u00ean t\u1ed1 n\u00e0o \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &#8220;Nh\u00f3m K\u1ebdm&#8221;?<br \/>\n   a) Nh\u00f3m 1<br \/>\n   b) Nh\u00f3m 2<br \/>\n   c) Nh\u00f3m 12<br \/>\n   d) Nh\u00f3m 3<br \/>\n   \u0110\u00e1p \u00e1n: c) Nh\u00f3m 12<\/p>\n<p>4. Nguy\u00ean t\u1ed1 n\u00e0o l\u00e0 m\u1ed9t kh\u00ed hi\u0111ro \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u00e8n hu\u1ef3nh quang?<br \/>\n   a) Helium<br \/>\n   b) Neon<br \/>\n   c) Krypton<br \/>\n   d) Argon<br \/>\n   \u0110\u00e1p \u00e1n: d) Argon<\/p>\n<p>5. Nguy\u00ean t\u1ed1 n\u00e0o \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi k\u00fd hi\u1ec7u &#8220;Na&#8221;?<br \/>\n   a) Natri<br \/>\n   b) Kali<br \/>\n   c) Magi\u00ea<br \/>\n   d) Canxi<br \/>\n   \u0110\u00e1p \u00e1n: a) Natri<\/p>\n<p>6. C\u1ea5u tr\u00fac electron n\u00e0o th\u1ec3 hi\u1ec7n b\u1edfi nguy\u00ean t\u1ed1 neon (Ne)?<br \/>\n   a) 2<br \/>\n   b) 10<br \/>\n   c) 8<br \/>\n   d) 18<br \/>\n   \u0110\u00e1p \u00e1n: c) 8<\/p>\n<p>7. Nguy\u00ean t\u1ed1 n\u00e0o l\u00e0 nguy\u00ean t\u1ed1 ki\u1ec1m nh\u00f3m 1?<br \/>\n   a) Oxy<br \/>\n   b) Natri<br \/>\n   c) Nito<br \/>\n   d) Kali<br \/>\n   \u0110\u00e1p \u00e1n: d) Kali<\/p>\n<p>8. C\u00f3 bao nhi\u00eau nguy\u00ean t\u1ed1 trong b\u1ea3ng tu\u1ea7n ho\u00e0n hi\u1ec7n nay?<br \/>\n   a) 118<br \/>\n   b) 92<br \/>\n   c) 109<br \/>\n   d) 84<br \/>\n   \u0110\u00e1p \u00e1n: a) 118<\/p>\n<p>9. Nguy\u00ean t\u1ed1 n\u00e0o l\u00e0 m\u1ed9t kim lo\u1ea1i ki\u1ec1m thu\u1ed9c nh\u00f3m 1?<br \/>\n   a) Kali<br \/>\n   b) Nh\u00f4m<br \/>\n   c) Canxi<br \/>\n   d) S\u1eaft<br \/>\n   \u0110\u00e1p \u00e1n: a) Kali<\/p>\n<p>10. Nguy\u00ean t\u1ed1 n\u00e0o c\u00f3 c\u1ea5u tr\u00fac electron cu\u1ed1i c\u00f9ng l\u00e0 &#8220;s\u00b2p\u2076&#8221;?<br \/>\n   a) Oxy<br \/>\n   b) Carbon<br \/>\n   c) Nit\u01a1<br \/>\n   d) Fluor<br \/>\n   \u0110\u00e1p \u00e1n: a) Oxy<\/p>\n<p>11. C\u00e1i g\u00ec \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t nguy\u00ean t\u1ed1 trong b\u1ea3ng tu\u1ea7n ho\u00e0n?<br \/>\n   a) K\u00ed hi\u1ec7u h\u00f3a h\u1ecdc<br \/>\n   b) T\u00ean nguy\u00ean t\u1ed1<br \/>\n   c) S\u1ed1 nguy\u00ean t\u1eed<br \/>\n   d) T\u1ea5t c\u1ea3 c\u00e1c ph\u01b0\u01a1ng \u00e1n tr\u00ean<br \/>\n   \u0110\u00e1p \u00e1n: d) T\u1ea5t c\u1ea3 c\u00e1c ph\u01b0\u01a1ng \u00e1n tr\u00ean<\/p>\n<p>12. Nguy\u00ean t\u1ed1 n\u00e0o l\u00e0 nguy\u00ean t\u1ed1 phi kim?<br \/>\n   a) Hydro<br \/>\n   b) S\u1eaft<br \/>\n   c) \u0110\u1ed3ng<br \/>\n   d) Nit\u01a1<br \/>\n   \u0110\u00e1p \u00e1n: a) Hydro<\/p>\n<p>13. Kim lo\u1ea1i n\u00e0o l\u00e0 nguy\u00ean t\u1ed1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c m\u1ea1 v\u00e0 \u0111i\u1ec7n ph\u00e2n?<br \/>\n   a) Nh\u00f4m<br \/>\n   b) Oxy<br \/>\n   c) Canxi<br \/>\n   d) Natri<br \/>\n   \u0110\u00e1p \u00e1n: a) Nh\u00f4m<\/p>\n<p>14. Nguy\u00ean t\u1ed1 n\u00e0o l\u00e0 kim lo\u1ea1i ph\u00f3ng x\u1ea1 m\u1ea1nh nh\u1ea5t?<br \/>\n   a) Radium<br \/>\n   b) Uranium<br \/>\n   c) Poloni<br \/>\n   d) Thorium<br \/>\n   \u0110\u00e1p \u00e1n: c) Poloni<\/p>\n<p>15. Nguy\u00ean t\u1ed1 n\u00e0o c\u00f3 t\u00ean l\u00e0 &#8220;Hidro&#8221; trong ti\u1ebfng Anh?<br \/>\n   a) Hydrogen<br \/>\n   b) Helium<br \/>\n   c) Hafnium<br \/>\n   d) Hassium<br \/>\n   \u0110\u00e1p \u00e1n: a) Hydrogen<\/p>\n<\/div>\n<p><button type=\"button\" id=\"copyquestionsBtn\" onClick=\"myFunction()\">Sao ch\u00e9p c\u00e2u h\u1ecfi \u0111\u1ed1<\/button><\/p>\n<h3 id=\"2\">Ph\u1ea7n 3: T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m b\u1eb1ng AI Quiz Generator<\/h3>\n<div class=\"embed_video_blog\">\n<div class=\"embed-responsive embed-responsive-16by9\" style=\"margin-bottom:16px;\">\n <iframe class=\"embed-responsive-item\" src=\"https:\/\/www.youtube.com\/embed\/zlqho9igH2Y\"><\/iframe>\n<\/div>\n<\/div>\n<div class=\"getstarted-container\">\n<p style=\"margin-bottom: 13px;\">T\u1ef1 \u0111\u1ed9ng t\u1ea1o c\u00e2u h\u1ecfi b\u1eb1ng AI<\/p>\n<div class=\"blog_double_btn clearfix\">\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/features\/ai-question-generator.html?refer=download_questions\" target=\"_blank\" rel=\"noopener\">Tr\u00ecnh t\u1ea1o c\u00e2u h\u1ecfi AI<\/a><\/div>\n<div class=\"p-style-b\">T\u1ea1o c\u00e2u h\u1ecfi cho b\u1ea5t k\u1ef3 ch\u1ee7 \u0111\u1ec1 n\u00e0o<\/div>\n<\/div>\n<div class=\"col-sm-6  col-xs-12\">\n<div class=\"p-style-a\"><a class=\"get_started_btn\" href=\"https:\/\/onlineexammaker.com\/sign-up.html?refer=blog_btn\"> T\u1ea1o m\u1ed9t c\u00e2u \u0111\u1ed1<\/a><\/div>\n<div class=\"p-style-b\">Mi\u1ec5n ph\u00ed 100% m\u00e3i m\u00e3i<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><script src=\"https:\/\/unpkg.com\/@popperjs\/core@2\"><\/script><br \/>\n<script src=\"https:\/\/unpkg.com\/tippy.js@6\"><\/script><\/p>\n<p><script type=\"text\/javascript\">\nfunction myFunction() {\nvar copyText = document.getElementById(\"copy_questions\");\n\/\/ Copy the text inside the text field\nconsole.log(copyText.innerText)\nnavigator.clipboard.writeText(copyText.innerText);\n}\nvar copy1, copy2;\n        tippy('#copyquestionsBtn', {\n        'content': \"Copy questions to clipboard\",\n       trigger: 'mouseenter',\n       'onCreate':function(instance){\n              copy1 = instance;\n       },\n       'onTrigger' : function(instance, event) {\n              copy2.hide();\n       }\n       });\n       tippy('#copyquestionsBtn', {\n       'content': \"Copied successfully\",\n       trigger: 'click',\n       'onCreate':function(instance){\n              copy2 = instance;\n       },\n       'onTrigger' : function(instance, event) {\n              copy1.hide();\n       }\n       });\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ea3ng tu\u1ea7n ho\u00e0n l\u00e0 b\u1ea3ng s\u1eafp x\u1ebfp c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n c\u1ee7a s\u1ed1 nguy\u00ean t\u1eed. C\u1ea5u tr\u00fac c\u1ee7a b\u1ea3ng tu\u1ea7n ho\u00e0n g\u1ed3m c\u00e1c h\u00e0ng v\u00e0 c\u1ed9t, trong \u0111\u00f3 m\u1ed7i h\u00e0ng \u0111\u1ea1i di\u1ec7n cho m\u1ed9t chu k\u1ef3 v\u00e0 m\u1ed7i c\u1ed9t \u0111\u1ea1i di\u1ec7n cho m\u1ed9t nh\u00f3m. M\u1ed7i \u00f4 trong b\u1ea3ng ch\u1ee9a [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":15203,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6049],"tags":[],"class_list":["post-36397","post","type-post","status-publish","format-standard","hentry","category-questions-answers-vi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>2026 | 15 c\u00e2u h\u1ecfi v\u00e0 \u0111\u00e1p \u00e1n c\u00e2u h\u1ecfi v\u1ec1 b\u1ea3ng tu\u1ea7n ho\u00e0n - OnlineExamMaker Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/onlineexammaker.com\/kb\/vi\/15-periodic-table-quiz-questions-and-answers-11\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2026 | 15 c\u00e2u h\u1ecfi v\u00e0 \u0111\u00e1p \u00e1n c\u00e2u h\u1ecfi v\u1ec1 b\u1ea3ng tu\u1ea7n ho\u00e0n - OnlineExamMaker Blog\" \/>\n<meta property=\"og:description\" content=\"B\u1ea3ng tu\u1ea7n ho\u00e0n l\u00e0 b\u1ea3ng s\u1eafp x\u1ebfp c\u00e1c nguy\u00ean t\u1ed1 h\u00f3a h\u1ecdc theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n c\u1ee7a s\u1ed1 nguy\u00ean t\u1eed. 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