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词汇 Halogen Element
分类 英语词汇 英语翻译词典
释义

Halogen Element

中文百科

卤素 Halogen

(重定向自Halogen Element)

卤素是元素周期表上的第ⅦA族元素(IUPAC新规定:17族),包括氟(F)、氯(Cl)、溴(Br)、碘(I)、砹(At)和Uus。

英语百科

Halogen 卤素

(重定向自Halogen Element)
Image: Liquid fluorine at cryogenic temperatures
Image: Liquid bromine
Image: Iodine crystal
From left to right: chlorine, bromine, and iodine at room temperature. Chlorine is a gas, bromine is a liquid, and iodine is a solid. Fluorine could not be included in the image due to its high reactivity, and astatine due to its radioactivity.

The halogens or halogen elements (/ˈhæləən, ˈh-, -l-, -ˌɛn/) 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. In the modern IUPAC nomenclature, this group is known as group 17.

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