推荐回答(1个)
1碱金属 氢-锂钠钾铷铯 最高一价
2第二主族 铍镁钙锶钡镭 这个不怎么考 最高二价
3第三主族 硼铝 下面不怎么考 最高三价
4碳族 碳硅锗锡铅 最高四价
5氮族 氮磷砷锑铋 最高五价
6氧族 氧硫硒碲钋 最高六价 氧很难被氧化只能被氟氧化
7卤素 氟氯溴碘砹 最高七价 氟非金属性最强不显正价
8惰性气体 氦氖氩氪氙氡 一般无化合物
一,主族数等于最外层电子数等于最高化合价(最外层电子完全失去)氧氟一般地说没有负价
相反地补足最外层电子到8个的需要的数目就是最低负价(金属不能现负价)
二、元素周期表左下角金属性最强,右上角(惰性气体除外)非金属性最强
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