fluorine
The chemical element with an atomic number of 9The 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.
» Hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine and iodine are diatomic elements.
Wasserstoff, Stickstoff, Sauerstoff, Fluor, Chlor, Brom und Jod sind zweiatomige Elemente.
Meaning
2 senses(uncountable)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.
an octahedron of fluorines
Fluor
фторftor
фторftor
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.
(countable)An atom of this element.
- a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
Examples
3 sentencesHydrogen, nitrogen, oxygen, fluorine, chlorine, bromine and iodine are diatomic elements.
deWasserstoff, Stickstoff, Sauerstoff, Fluor, Chlor, Brom und Jod sind zweiatomige Elemente.
Fluorine, chlorine, bromine, iodine and astatine are halogens.
ruФтор, хлор, бром, йод и астат - галогены.
In their analysis of fast food packaging, researchers said 20 percent of paperboard samples, including boxes for french fries and pizza, contained fluorine.
Translations
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Forms
plural: fluorinesSynonyms
3 synonyms- a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite:Fatomic number 9
Word family
18 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable