原子光谱数据是研究原子结构的重要参数，氢及类氢离子是原子物理和量子力学研究的理想体系。
Atomic spectrum data are important parameters to research atomic structure, hydrogen and hydrogen-like ions are idea system to study atomic physics and quantum mechanics.
在原子价电子层结构的基础上提出了原子结构半径和键参数的概念，并利用键参数研究碱金属卤化物晶格焓。
This article makes a detailed analysis of the definition of atomic radius and ionic radius, so that the two terms can be well understood and used in the course of teaching.
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