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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)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    History

    Rhenium has been known since ancient times

    Historical Timeline

    Predicted by Mendeleev as eka-manganese

    Confirmed via X-ray spectroscopy