問題詳情
4.下列何種元素的電子排列，最外層的電子數與 
N相同？
(A)
Mg
(B)
Al
(C)
Si
(D)
P。
N相同？ (A)
Mg (B)
Al (C)
Si (D)
P。
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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