halogens meaning in English
卤素（氟，氯，溴，碘）
卤素元素
卤族
Examples
- 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。 - All the halogens require one more electron to complete a p-shell .
所有的卤素都要求得到一个额外的电子来填满P壳层。 - Halogens also have the necessary absorption in the ultraviolet and rapid dissociation .
卤素也具有吸收紫外线和分解快这两种特性。 - The formation of polyhalides depends on the combination of a central halide ion with a halogen .
多卤化物的形成取决于中心卤化物离子与卤素的结合。 - 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。