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    Pb

    Lead

    Post Transition

    Atomic Number: 82 • Atomic Mass: 207.2000 u • Period: 6 • Group: 14

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p²
    Phase: Solid
    Electronegativity: 1.87
    Thallium (Tl)Bismuth (Bi)
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    Physical & Chemical Properties

    Physical Properties

    • •Bluish-white, dense metal
    • •Soft and malleable
    • •Poor conductor
    Melting Point

    600.61 K (327.46 °C, 621.43 °F)

    Boiling Point

    2022 K (1748.85 °C, 3179.93 °F)

    Density

    11.34 g/cm³

    Electronegativity

    1.87 (Pauling scale)

    Chemical Properties

    • •Resistant to corrosion
    • •Forms stable compounds with oxidation state +2 and +4
    • •Cumulative poison

    Electron Configuration

    1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p²

    Electron configuration describes how electrons are distributed in atomic orbitals, showing how they are arranged in energy levels and subshells.