atomic number 9

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Noun atomic number 9 has 1 sense

fluorine, F, atomic number 9 - 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
--₁ is a kind of chemical element, element; gas; halogen
--₁ is a substance of
fluorite, fluorspar, fluor; fluorapatite; cryolite, Greenland spar

atomic number 1 atomic number 2 atomic number 3 atomic number 4 atomic number 5 atomic number 6 atomic number 7 atomic number 8 atomic number 9 atomic number 10 atomic number 11 atomic number 12 atomic number 13 atomic number 14 atomic number 15 atomic number 16 atomic number 17

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