{"common":{"save":0,"post_id":"6193","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5462","mon_id":"1158798","chapter_id":"1158799","post_id":"6193","question":"<p>Nguyên t\u1eed c\u1ee7a nguyên t\u1ed1 X có t\u1ed5ng s\u1ed1 h\u1ea1t là 40. T\u1ed5ng s\u1ed1 h\u1ea1t mang \u0111i\u1ec7n nhi\u1ec1u h\u01a1n t\u1ed5ng s\u1ed1 h\u1ea1t không mang \u0111i\u1ec7n là 12 h\u1ea1t . Nguyên t\u1ed1 X có Z là :<\/p>","options":["A.13","B. 14","C. 12","D. 40"],"correct":"1","level":"0","hint":"","answer":"<p><span style=\"color:#27ae60;\"><strong>\u0110áp án \u0111úng là: A<\/strong><\/span> <br \/>2Z + N = 40<br \/>2Z – N = 12 <br \/><span class=\"math-tex\">$\\Rightarrow$<\/span> 4Z= 52 => Z = 13<br \/> <\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-09-06 09:17:37","option_type":"txt","len":0},{"id":"5463","mon_id":"1158798","chapter_id":"1158799","post_id":"6193","question":"<p>Magnesium có 3 \u0111\u1ed3ng v\u1ecb <span class=\"math-tex\">$^{24}Mg$<\/span> , <span class=\"math-tex\">$^{25}Mg$<\/span> và <span class=\"math-tex\">$^{26}Mg$<\/span>. Chlorine có \u0111\u1ed3ng v\u1ecb <span class=\"math-tex\">$^{35}Cl$<\/span> và <span class=\"math-tex\">$^{37}Cl$<\/span>. Có bao nhiêu lo\u1ea1i phân t\u1eed <span class=\"math-tex\">$MgCl_2$<\/span> khác t\u1ea1o nên t\u1eeb các \u0111\u1ed3ng v\u1ecb c\u1ee7a 2 nguyên t\u1ed1 \u0111ó?<\/p>","options":["A. 6","B. 9","C 12","D. 10"],"correct":"2","level":"0","hint":"","answer":"<p><span style=\"color:#27ae60;\"><strong>\u0110áp án \u0111úng là: B<\/strong><\/span><br \/>\u1ee8ng v\u1edbi m\u1ed7i \u0111\u1ed3ng v\u1ecb c\u1ee7a Mg có 3 lo\u1ea1i phân t\u1eed <span class=\"math-tex\">$MgCl_2$<\/span> khác nhau, t\u01b0\u01a1ng \u1ee9ng v\u1edbi 2 nguyên t\u1eed Cl l\u1ea7n l\u01b0\u1ee3t là (35,35), (37,37), (35,37)<br \/><span class=\"math-tex\">$\\Rightarrow$<\/span> Có t\u1ea5t c\u1ea3 3.3 = 9 lo\u1ea1i phân t\u1eed <span class=\"math-tex\">$MgCl_2$<\/span> khác nhau<\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-09-06 09:24:40","option_type":"txt","len":0},{"id":"5464","mon_id":"1158798","chapter_id":"1158799","post_id":"6193","question":"<p>Oxigen có 3 \u0111\u1ed3ng v\u1ecb <span class=\"math-tex\">$^{16}O$<\/span>, <span class=\"math-tex\">$^{17}O$<\/span> và <span class=\"math-tex\">$^{18}O$<\/span>. Carbon có hai \u0111\u1ed3ng v\u1ecb là: <span class=\"math-tex\">$^{12}C$<\/span>, <span class=\"math-tex\">$^{13}C$<\/span>. H\u1ecfi có th\u1ec3 có bao nhiêu lo\u1ea1i phân t\u1eed khí cacbonic \u0111\u01b0\u1ee3c t\u1ea1o thành gi\u1eefa 2 nguyên t\u1ed1 \u0111ó?<\/p>","options":["A. 11.","B. 12.","C. 13.","D. 14."],"correct":"2","level":"0","hint":"","answer":"<p><span style=\"color:#27ae60;\"><strong>\u0110áp án \u0111úng là: B<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-09-06 09:27:03","option_type":"txt","len":0}]}
