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Fluorine is a chemical element, symbol F. In its free form it is a pale yellow gas that is poisonous and attacks almost everything it touches — one of the fiercest elements there is. You will not meet the gas in daily life. Though actually, the “fluorine” you hear about in is not this gas; it has been locked into fluoride compounds. Chemists keep the free element in special equipment. The name comes from Latin fluor, “flow,” because the mineral it was taken from melts and flows easily. A British chemist, Humphry Davy, coined the English name in 1813.
氟(元素)
組成Latin fluor (“flow”) + -ine. Coined by Humphry Davy in 1813.
同家族的字
- fluoridethe everyday compound made from this element
- fluorocarbona chemical built from fluorine and carbon
- fluoridateto add a fluorine compound to water
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法,原文照列,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
fluorinenoun/ˈflʊ(ə)ɹˌin
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The chemical element (symbol F) with an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals.
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chemistrynatural-sciencesphysical-sciencesAn atom of this element.
- an octahedron of fluorines
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。