問題詳情

18.
The valence electron configuration of an element X is ns²(n-1)d¹⁰np². To which group in the periodic table does X belong?
(A) Group 3A
(B) Group 4A
(C) Group 6A
(D) Group 5A
(E) Group 2A

參考答案

答案：B

統計：A:0,B:0,C:0,D:0,E:0

難度：計算中