And remember we 're only talking about valence electrons so the outer-most shells .
要记得,我们讨论的只是 价电子,也就是最 外层的电子。
A Study of the Binding Energy Spectra and Momentum Profiles for the Valence Shells of Methane
甲烷 分子 价 壳层 电子动量谱和束缚能谱研究
Transition element Any chemical element with valence electrons in two shells instead of only one .
过渡元素及其 化合物: 价电子处在两个 壳层而不是一个 壳层里的任何化学元素。
How many electrons do we need to have full valence shells ?
要把 价 层 排满需要多少个电子?
[电] 价层