大学化学 >> 2019, Vol. 34 >> Issue (12): 13-21.doi: 10.3866/PKU.DXHX201908047
所属专题: 2019元素周期表年
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唐宗薰1,*(),朱亚先2,崔斌1
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Zongxun TANG1,*(),Yaxian ZHU2,Bin CUI1
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摘要:
除众所周知的氢在周期表中的位置不确定性、第二周期元素的性质的特殊性之外,本文将详细介绍d区元素的电子排布,第四周期非金属元素最高价态的不稳定性,惰性电子对效应,第五、六周期重过渡元素的相似性和次周期性以及第3族元素编排反常现象并作必要的探讨。
关键词: 周期反常性
Abstract:
In this paper, the electronic arrangement of the elements in the d block, instability of the highest valence state of the nonmetals in the fourth period, inert pair effect, similarity and secondary periodicity of the fifth and sixth periodic heavy transition elements, and periodic anomalies of the arrangement of Group Ⅲ elements are introduced in detail with necessary discussions. However, the well-known uncertainty about the position of hydrogen in the periodic table and the particularity of elemental properties of the second period are not within the scope of this article.
Key words: Periodic anomalies
唐宗薰,朱亚先,崔斌. 周期反常性[J]. 大学化学, 2019, 34(12): 13-21.
Zongxun TANG,Yaxian ZHU,Bin CUI. Periodic Anomalies[J]. University Chemistry, 2019, 34(12): 13-21.
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链接本文: https://www.dxhx.pku.edu.cn/CN/10.3866/PKU.DXHX201908047
https://www.dxhx.pku.edu.cn/CN/Y2019/V34/I12/13
图1
Ag和Au的价轨道的相对论性(Rel)和非相对论性(NR)结果"
表1
铜分族的一些性质"
图2
4f区元素气态原子4f n−15d16s2和4f n6s2组态的近似相对能量"
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