halogen
英 ['h?l?d?(?)n; 'he?l-]
美['h?l?d??n]
- n. [化學] 鹵素
暢通詞匯
中文詞源
halogen 鹵素
halo-,鹽，詞源同salt,-gen,生成，詞源同generate.即生成鹽的鹵素。
英文詞源
- halogen (n.)
- general name for elements of the chlorine family, 1842, from Swedish, coined by Swedish chemist Baron J?ns 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.
雙語例句
- 1. Halogen atoms contain seven electrons in their valence shell.
- 鹵原子在它們的介電子層含有七個電子.
來自辭典例句
- 2. Without doubt chloroform is one of the most important compounds containing a carbon - halogen bond.
- 毫無疑問,氯仿是含碳?鹵鍵的最重要的化合物之一.
來自辭典例句
- 3. The formation of polyhalides depends on the combination of a central halide ion with a halogen.
- 多鹵化物的形成取決于中心鹵化物離子與鹵素的結(jié)合.
來自辭典例句
- 4. Halogen atoms contain seven electrons in their valence shell, and , consequently, are monovalent.
- 鹵原子在它們的價電子層含有七個電子, 因此是一價的.
來自辭典例句
- 5. The cable achieves the performance of low smoke halogen free.
- 電纜具有低煙、無鹵特性.
來自互聯(lián)網(wǎng)