如何巧记元素周期表中前20个元素及其符号和原子序数
推荐回答(5个)
元素周期表既然那么多东西当然不好记 这个我觉得需要点兴趣首先 主族元素竖着背 副族元素横着背 主族金属可以依赖金属性跟非经属性的分界线来来记忆如锑元素 碲元素等等 还有比较容易混淆的是铟 锡 铊 铋等 这些单独记忆 那么主族基本可以搞定。。。副族元素横着看 钪钛钒铬猛 铁钴镍铜锌 铜下面是银 银下面是金 金前面是白金(铂) 后面是汞 这五个元素就是我们金属活性顺序表最后的铜汞银铂金
第二行跟第三行多读读就ok了 钇锆铌钼锝 钌铑钯银镉
第三行副族第一个镧系元素之后 铪钽钨铼 锇铱铂金汞
之后是记住第四行副族 包括第一个锕系元素 最后三个 uun uuu uub n是0 u是1 b是2 所以最后三个是 110 111 112
镧系元素跟锕系元素都是联想记忆的 因为元素名字有来头的
比如说 镅是Am 意思是America(美国) 铕 Eu 意思是Europe(欧洲)
通过两行二十八个元素的相对前后左右位置记忆
一些印象比较深的元素的序号要记住 作为标杆 然后依次填空完成其余元素我凭记忆想几个元素的符号跟来历99是象征爱因斯坦的锿 100是镄 纪念费米还是费马不记得了 101是纪念门捷列夫的钔 92到94的 铀镎钚是天王星 海王星 冥王星的意思 金属84号 钋Po是波兰的缩写 Po是居里夫人发现的元素 最终以她的祖国命名 87号钫Fr是法兰西的缩写 钷是普罗米修斯的意思 然后基本上还有的就不记得了。。。。 想交流可以留言 欢迎
第一周期:氢 氦 ---- 侵害
第二周期:锂 铍 硼 碳 氮 氧 氟 氖 ---- 鲤皮捧碳 蛋养福奶
第三周期:钠 镁 铝 硅 磷 硫 氯 氩 ---- 那美女桂林留绿牙(那美女鬼 流露绿牙)
符号的话,只能死记,多写写自然会记得。原子序数的话可以和名称一起背就像这样“一氢、二氦、三锂……”
亲爱的people 他爹有胡来 那美女归你 榴莲要加钙
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