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    Be

    Beryllium

    Alkaline Earth

    Atomic Number: 4 • Atomic Mass: 9.0122 u • Period: 2 • Group: 2

    Electron Configuration: 1s² 2s²
    Phase: Solid
    Electronegativity: 1.57
    Lithium (Li)Boron (B)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    History

    Beryllium has been known since ancient times

    Historical Timeline

    Discovered in 1798 by Louis-Nicolas Vauquelin in beryl and emeralds

    Isolated in 1828 by Friedrich Wöhler and Antoine Bussy independently

    Named after the mineral beryl from which it was first extracted