halogen中文什么意思

n.
【化学】卤(素)。 halogen acid 氢卤酸。

• bulb-halogen:    卤化灯泡
• halogen absorbent:    吸卤剂
• halogen acceptor:    卤素受体; 吸卤剂

例句与用法

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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. 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。
3. 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。
4. 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。
5. 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。

英文释义

名词

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

百科释义

The halogens or halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The artificially created element 117 (ununseptium) may also be a halogen.