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Definition of Atomic number 9
1. Noun. 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.
Exact synonyms: F, Fluorine
Generic synonyms: Chemical Element, Element, Gas, Halogen
Substance meronyms: Cryolite, Greenland Spar, Fluorapatite, Fluor, Fluorite, Fluorspar
Generic synonyms: Chemical Element, Element, Gas, Halogen
Substance meronyms: Cryolite, Greenland Spar, Fluorapatite, Fluor, Fluorite, Fluorspar
Lexicographical Neighbors of Atomic Number 9
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