fluorine

oxygen${\displaystyle \longleftarrow }$ 9 ${\displaystyle \longrightarrow }$neon

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Fluorine

Pronunciation

• IPA ^(key): /ˈflɔːrɪn/

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• Audio (US)

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• Hyphenation: flou‧rine

Noun

Singular fluorine

Plural none

1. Fluorine is a yellow gas that has an atomic number of 9 and the symbol F.

   Fluorine reacts very easily.

   Fluoride toothpaste contains a compound of fluorine.