词族 · halogen
词形变化
中文词源
halogen 卤素
halo-,盐，词源同salt,-gen,生成，词源同generate.即生成盐的卤素。
英语词源
- halogen (n.)
- general name for elements of the chlorine family, 1842, from Swedish, coined by Swedish chemist Baron Jöns Jakob Berzelius (1779-1848), literally "salt-producer," from Greek hals "salt" (see halo-) + -gen "giving birth to" (see -gen); so called because a salt is formed in reactions involving these four elements. Related: Halogenous.
权威例句
- 1. 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.
- 2. Without doubt chloroform is one of the most important compounds containing a carbon - halogen bond.
- 毫无疑问,氯仿是含碳?卤键的最重要的化合物之一.
- 3. 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.
- 4. 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.
- 5. The cable achieves the performance of low smoke halogen free.
- 电缆具有低烟、无卤特性.