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新编高中化学课本(第一册),在物质结构及元素周期律一章中,介绍了多电子原子电子的近似能级图。如何正确理解和使用这一能级图以及各种帮助记忆的图解(见一般无机化学教科书或本刊1978年第10期有关文章),对于掌握原子核外电子的排布,正确书写电子排布式,了解原子电子层结构与元素周期律的关系以及根据元素的原子结构判断元素在周期表中的位置,等等,都是十分重要的。但是,如果不理解这一能级图所适用的范围,使用不当,也可能带来概念上的混乱。举例来说,要写出镭_(88)Ra 在基态的核外电子排布,若死扣上述近似能
In the new high school chemistry textbook (Book One), an approximate energy level diagram for multi-electron atomic electrons is presented in the chapter on material structure and elemental periodicity. How to correctly understand and use this energy level diagram and various help memory diagrams (see General Inorganic Chemistry Textbooks or Articles of the 10th issue of this edition of 1978), for the purpose of grasping the arrangement of electrons outside the atomic nucleus and correctly writing the electronic arrangement pattern It is very important to understand the relationship between the atomic electron layer structure and the periodic law of the element and to determine the position of the element in the periodic table based on the atomic structure of the element. However, if you do not understand the scope of this energy level map and use it improperly, it may also bring about conceptual confusion. For example, to write out the nucleus of Ra_(88)Ra in the ground state, if the approximate energy can be deducted