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19. A、B、C、D、E 五種元素在週期表中位置如下,已知 B 的原子序為 n,則五種元素原子序之和可能為 (A)5n+6 (B)5n+8(C)5n+10 (D)5n+16 (E)5n+18。
問題詳情
19. A、B、C、D、E 五種元素在週期表中位置如下,已知 B 的原子序為 n,則五種元素原子序之和可能為
(A)5n+6
(B)5n+8
(C)5n+10
(D)5n+16
(E)5n+18。
參考答案
答案:C
難度:非常困難0.0769231
統計:A(1),B(1),C(1),D(3),E(1)
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