點解atomic symbol of electron 係
0 e 呢?
-1
下面atomic no.= no. of protons, 咁點解唔係
0e ?
0
收錄日期: 2021-04-13 13:37:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070925000051KK01570