下列叙述正确的是(A).同一主族的元素，原子半径越大，其单质的熔点一定越高(B).同一周期元素的原子，半径越小越容易失去电子(C).同一主族的元素的氢化物，相对分子质量越大，它的沸点一定越高(D)

問題詳情

7.下列叙述正确的是
(A).同一主族的元素，原子半径越大，其单质的熔点一定越高
(B).同一周期元素的原子，半径越小越容易失去电子
(C).同一主族的元素的氢化物，相对分子质量越大，它的沸点一定越高
(D).稀有气体元素的原子序数越大，其单质的沸点一定越高

參考答案

答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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