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    Sb

    Antimony

    Metalloid

    Atomic Number: 51 • Atomic Mass: 121.7600 u • Period: 5 • Group: 15

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p³
    Phase: Solid
    Electronegativity: 2.05
    Tin (Sn)Tellurium (Te)
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    Occurrence

    Antimony is found in various natural sources, including minerals, rocks, and the Earth's crust.

    • 63rd most abundant element in Earth's crust (0.2 ppm)
    • Rarely found as native element
    • Main ore is stibnite (antimony sulfide, Sb₂S₃)
    • Major deposits in China, Russia, Bolivia, and South Africa
    • Often associated with arsenic minerals