valence shell

An element bonding parameter topological index HLA is proposed based on topological principle and valence shell electron structural character.

基于元素键参数拓扑指数原理以及镧系元素价层电子结构特征构建了一种新的拓扑指数HLA。

A New Formula for Calculating the Valence Shell Electron Pairs of Centre Atom in Molecular

一个计算分子中心原子价层电子对数的新公式

Halogen atoms contain seven electrons in their valence shell.

卤原子在它们的介电子层含有七个电子.

Halogen atoms contain seven electrons in their valence shell, and , consequently, are monovalent.

卤原子在它们的价电子层含有七个电子, 因此是一价的.

This paper analyzes shell electron pair repulsion theory, valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.

对稀有气体化合物的分子结构分别用价层电子对互斥理论、价键理论和分子轨道理论进行了分析处理。