23. What is the number of lone pairs of electrons in the NO2 – ion? (A) 4 (B) 5 (C) 6 (D) 7 (E) 8

問題詳情

23. What is the number of lone pairs of electrons in the NO2 – ion?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8

參考答案

答案：C

統計：A:0,B:1,C:1,D:0,E:0

難度：計算中

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