atomic number 9

(Pronunciation -تلفظ سنیۓ ) US:

Slow

Normal

Noun: atomic number 9

1. atomic number 9 [ Synonyms: f, fluorine]
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

Generic Words:

chemical element, element, gas, halogen

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