引用:
原帖由 williamkhw 於 2008-3-13 21:04 發表
問題係...graphite 的b.p 同埋m.p高過鑽石wo..
其實...兩樣都係Carbon- -
但係...你其實講呢句有咩意思...
diamond入面carbon係bonded tetrahedrally, 所以every carbon atom 都係sp3 hybridized 佢地之間既距離係0.154nm
graphite既同一平面each carbon is bonded with three carbon atoms, 所以every carbon atom都係sp2 hybridized 佢地之間既距離係0.142nm, 比diamond緊密....
所以diamond bp mp低d...
之前解得唔清晰...>sry......