百度试题 结果1 题目Of the following atoms, which has the largest radius? ( ) A. Na B. Al C. K D. Cl 相关知识点: 试题来源: 解析 C 反馈 收藏
(A) Si (B) Ca (C) CI (D) Fe (E) Na答案是(E) 相关知识点: 试题来源: 解析 失去一个电子后已经达到稳定结构.再失去一个电子就很困难.结果一 题目 Which of the following atoms has the largest second ionization energy? (A) Si (B) Ca (C) CI (D) Fe (E) Na 答案是(E) 答案 ...
百度试题 结果1 题目6 Which element has atoms with the greatest number of singly occupied orbitals? A C B CL C Ca D Ga Your answer A 相关知识点: 试题来源: 解析 A 反馈 收藏
百度试题 结果1 题目43. Which element has atoms with exactly four valence electrons in its ground state? C(A)Ca (B) Cr (C) Si(D)S 相关知识点: 试题来源: 解析 C 反馈 收藏
which element has atoms with more valence electrons than kernel electrons?a.Beb.Fc.Nad.Pe.Ar为什么是选B?什么是valence electron?什么是kernel electron?. 答案 valence electron 价电子kernel electron 内层电子 ( kernel 核)Be 1s2 2s2 价电子与内层电子数相等F 1s2 2s2 2p5 价电子数多于内层电子数Na...
结果1 题目 18 Which sample at STP has the same number of atoms as 18 liters of Ne(g) at STP?(2)(1)18 moles of Ar(g)(2)18 liters of Ar(g)(3)18 grams OfH_2O(g)(4)18 milliliters of H2O(g) 相关知识点: 试题来源: 解析 (2) 反馈 收藏 ...
the object has melted3.Heating an object will affectA.the movements of its atomsB.the speed of its atomsC.the shape of its atomsD.both A and B4.An object holds its shape because its atomsA.usually hold togetherB.move very fastC.are very hotD.are not moving5.When its atoms leave ...
A.at all timesB.only when the object is heatedC.whenever they grow hotD.unless the object has melted(3)Heating an object will affect [ ]A.the movements of its atomsB.the speed of its atomsC.the shape of its atomsD.both A and B(4)An object holds its shape because its atoms __...
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Which of the following atoms has the greatest first ionization energy? ( ) A.B B.C C.N D.O 点击查看答案 你可能感兴趣的试题 单项选择题 花粉发育过程中所需的营养物质主要来自于 。 A. 中层B. 绒毡层 C. 纤维层 D. 造孢细胞 点击查看答案 ...