問題詳情
5.A、B兩主族非金屬元素，位於同一週期。已知兩原子間可結合成化學式為AB3型分子，則A、B應分屬於下列何族元素？
(A)1A、3A
(B)1A、5A
(C)5A、7A
(D)3A、6A
(E)4A、8A 族。
(A)1A、3A
(B)1A、5A
(C)5A、7A
(D)3A、6A
(E)4A、8A 族。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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