係covalent bond,,
一lone pair of electron 係兩粒冇bond 既 electrons
咁一粒冇bond既electron叫咩??
收錄日期: 2021-04-13 15:34:37
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080516000051KK02042