halogen是什么意思_halogen怎么读_中英文释义(含例句用法)

any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions

中英词源

halogen 卤素

halo-,盐，词源同salt,-gen,生成，词源同generate.即生成盐的卤素。

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.

词态变化

权威造句

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.

近反义词

halogen cyan 卤化氰

halogen derivative 卤素衍生物

halogen ester 卤代酯

halogen refrigerate 卤素冷冻机

halogen substituted 卤素取代了

halogen acceptor 卤素受体

nuclear halogen 环上卤素

halogen derivatives 卤素衍生物

halogen refrigerant 卤素冷冻剂,用卤素衍...

halogen sediments 卤化沉积

halogen disinfectant 卤素消毒剂

halogen hydride 卤化氢

halogen process 卤化法

相似短语

halogen compound 卤素化合物

halogen in ring 环上的卤

halogen hydride 卤化氢

halogen cell 卤素电池

halogen refrigerator 卤素冷冻机

halogen vapour 卤素蒸气

halogen compounds 卤素化合物

halogen lamp 碘钨灯

halogen ester 卤代酯

halogen acetone 卤代丙酮

单词分析

暂无,等待补充.

记忆方法