valence shells
英 [ˈvæləns ʃelz]
美 [ˈveɪləns ʃelz]
【电】价层
双语例句
- How many electrons do we need to have full valence shells?
要把价层排满需要多少个电子？ - 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。 - 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。 - 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