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    Re

    Rhenium

    Transition Metal

    Atomic Number: 75 • Atomic Mass: 186.2100 u • Period: 6 • Group: 7

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d⁵
    Phase: Solid
    Electronegativity: 1.9
    Tungsten (W)Osmium (Os)
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    Physical & Chemical Properties

    Physical Properties

    • •Silver-white metal
    • •High melting point
    • •High density
    Melting Point

    3459 K (3185.85 °C, 5766.53 °F)

    Boiling Point

    5869 K (5595.85 °C, 10104.53 °F)

    Density

    21.02 g/cm³

    Electronegativity

    1.9 (Pauling scale)

    Chemical Properties

    • •Multiple oxidation states
    • •Forms numerous compounds
    • •Resistant to corrosion

    Electron Configuration

    1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d⁵

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