选BC
质量相同的CH4和NH3,分子个数比为二者相对分子质量的反比,所以A正确.
因为CH4和NH3所含电子数和质子数都相等,均为10,所以电子个数比和质子个数比就是分子个数比,所以C错误,D正确
原子个数比即为17*5:16*4=85:64,所以B错误
质量相同的CH4和NH3比较,下列结论错误的是
质量相同的CH4和NH3比较,下列结论错误的是
A.分子个数比为17:16
B原子个数比为17:16
C.电子个数比为17：:12
D.质子个数比为17:16
A.分子个数比为17:16
B原子个数比为17:16
C.电子个数比为17：:12
D.质子个数比为17:16
化学人气：249 ℃时间：2020-03-05 16:13:51
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