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    Nb

    Niobium

    Transition Metal

    Atomic Number: 41 • Atomic Mass: 92.9060 u • Period: 5 • Group: 5

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁴
    Phase: Solid
    Electronegativity: 1.6
    Zirconium (Zr)Molybdenum (Mo)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    History

    Niobium has been known since ancient times

    Historical Timeline

    Discovered in a mineral sent from Massachusetts to the British Museum

    Originally named columbium (Cb) in the United States

    Renamed niobium by the International Union of Chemistry in 1949