氟（Fluorine）是一种非金属化学元素，化学符号为F，原子序数为9。 氟是卤族元素之一，属周期系ⅦA族，在元素周期表中位于第二 …
baike.baidu.com › itemn. 1. 氟 a chemical element. Fluorine is a poisonous pale yellow gas and is very reactive .
global.bing.com › dict › searchFluorine is a natural environmental contaminant and both feeding stuffs and water for livestock contain fluorides.
dictionary.cambridge.org › zhs › 词典 › 英语-汉语...2026年8月14日 · Fluorine, the most reactive chemical element and the lightest member of the halogen elements. Its chemical activity …
www.britannica.com › science › fluorine氟气，氟元素的气体单质，化学式为F2，淡黄色剧毒气体，氟气化学性质十分活泼，具有很强的氧化性，除全氟化合物外，可以与几 …
baike.baidu.com › item › 氟气Periodic Table Fluorine Fluorine is a chemical element with symbol F and atomic number 9. Classified as a halogen, Fluorine is a …
pubchem.ncbi.nlm.nih.gov › element › Fluorine