問題詳情
39. 碳元素有 C、C、C 三種同位素，下列各項中對這三種原子都相同的是：
(A)在自然界中所占原子百分比
(B)質子數
(C)中子數
(D)核外電子排列
(E)質量數
(A)在自然界中所占原子百分比
(B)質子數
(C)中子數
(D)核外電子排列
(E)質量數
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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