各元素的化合價
各元素的化合價
1--20號,Fe,Mn,I,Br,Ba等越多越好
1--20號,Fe,Mn,I,Br,Ba等越多越好
化學(xué)人氣:376 ℃時間:2020-02-20 14:54:15
優(yōu)質(zhì)解答
H:-1,0,+1He:0Li:0,+1,+3Be:0,+2B:0,+3C:-4,0,+2,+4N:-3,-2,0,+1,+2,+3,+4,+5O:-2,-1,-1/2,-1/3,-1/4,0,+2F:-1,0Ne:0Na:0,+1Mg,Ca,Ba:0,+2Al:0+3Si:-4,0,+2,+4P:-3,-2,0,+3,+5S:-2,0,+2,+4,+6Cl,Br,I:-1,0,+1,+3,+5,...
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