halogen是什麼意思 halogen的用法 halogen怎麼讀
halogen
英 ['hælədʒ(ə)n; 'heɪl-]美 ['hælədʒən]
n. [化學] 鹵素
星級詞彙:★
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。
英語詞源
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.權威例句
1. Halogen atoms contain seven electrons in their valence shell.
滷原子在它們的介電子層含有七個電子.
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?滷鍵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.
多鹵化物的形成取決於中心鹵化物離子與鹵素的結合.
4. Halogen atoms contain seven electrons in their valence shell, and , consequently, are monovalent.
滷原子在它們的價電子層含有七個電子, 因此是一價的.
5. The cable achieves the performance of low smoke halogen free.
電纜具有低煙、無滷特性.
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