Antimony (pronounced /ˈæntɨmɵnɪ/ AN-ti-mo-nee)[note 1] is a chemical element with the symbol Sb (Latin: stibium, meaning "mark") and atomic number 51. A metalloid, antimony has four allotropic forms. The stable form of antimony is a blue-white metalloid. Yellow and black antimony are unstable non-metals. Antimony is used in electronics and flame-proofing, in paints, rubber, ceramics, enamels, drugs to treat Leishmania infection and a wide variety of alloys.
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