fluorine

noun

a nonmetallic univalent element belonging to the halogens
ハロゲンに属する非金属の一価元素

usually a yellow irritating toxic flammable gas
通常黄色い刺激する有毒な可燃性ガス

a powerful oxidizing agent
強力な酸化剤

recovered from fluorite or cryolite or fluorapatite
ほたる石、氷晶石、フッ素リン灰石から回復した

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