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    No

    Nobelium

    Actinide

    Atomic Number: 102 • Atomic Mass: 259.0000 u • Period: 7 • Group: 102

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴
    Phase: Solid
    Electronegativity: 1.3
    Mendelevium (Md)Lawrencium (Lr)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    History

    Nobelium has been known since ancient times

    Historical Timeline

    First correctly identified at Berkeley, California