valence electron

汉语翻译

英语解释：

名词 valence electron:

1. an electron in the outer shell of an atom which can combine with other atoms to form molecules

例句：

1. A set of eight valence electrons in an atom or ion, forming a stable configuration.
   八重态在一个原子或离子中，形成稳定组态的一组八个化合价电子