求前20个化学元素的化合价
问题描述:
求前20个化学元素的化合价
答
H:+1,0,-1(少)
He:0
Li:+1,0
Be:+2,0
B:+3,0
C:+4,+2,0
N:-3,-2(少),-1(少),0,+2,+3,+4,+5
O:-2,-1,0
F:-1,0
Ne:0
Na:+1,0
Mg:+2,0
Al:+3,0
Si:+4,0
P:-3,0,+1(少),+3,+5
S:-2,0,+4,+6
Cl:-1,0,+1,+3,+5,+7
Ar:0
K:+1,0
Ca:+2,0