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少少補充.
cracking 要 heat "in absence of air". Otherwise it will burn.
最外層電子是 valence electrons.
沒有鍵合的電子應該叫 unbonded valence electrons
lone pair = 1對沒有鍵合的電子. 2粒only.
3d dimentional structure中, 電子是 1 pair pair.
In H2O , O have 2 bond pairs and 2 lone pairs.
[ Last edited by [S]【YU】 on 2006-3-20 at 07:18 PM ] |
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