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    Po

    Polonium

    Metalloid

    Atomic Number: 84 • Atomic Mass: 209.0000 u • Period: 6 • Group: 16

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁴
    Phase: Solid
    Electronegativity: 2
    Bismuth (Bi)Astatine (At)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    History

    Polonium has been known since ancient times

    Historical Timeline

    Discovered in pitchblende ore

    First element discovered by the Curies