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How to spell fluorine

Fluorine is spelled F-L-U-O-R-I-N-E.

hear itflu·o·rine/fl'ʊr,in/nounSchwa and roots

What it means: A chemical element that is a toxic gas.

In a sentence: Fluorine is a gas that helps keep our teeth strong.

The part people get wrong

Watch for an unstressed vowel that is hard to hear.

Same family: fluorine-18, fluoride, fluoridation, fluorite, fluorocarbon. If you can spell one, the shared part carries to the others.

Where it comes from: The word 'fluorine' comes from the Latin 'fluere,' meaning 'to flow,' because the mineral fluorite was used as a flux to help ores melt and flow more easily in metalworking. The element itself was not isolated until 1886 because its extreme reactivity made it notoriously dangerous to work with.

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