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  8. [fluorine and fluorine compounds]
  9. fluorine
Scope note
Chemical element that, when pure, is a pale-yellow, toxic gas. Fluorine occurs naturally in the form of mineral fluorite, cryolite, and fluorapatite. Fluorine is the most electronegative and reactive element known. Henri Moissan of France received a Nobel Prize for first isolating fluorine in 1886.
Accepted term: 15-Jul-2024