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    Cd

    Cadmium

    Transition Metal

    Atomic Number: 48 • Atomic Mass: 112.4100 u • Period: 5 • Group: 12

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰
    Phase: Solid
    Electronegativity: 1.69
    Silver (Ag)Indium (In)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Occurrence

    Cadmium is found in various natural sources, including minerals, rocks, and the Earth's crust.

    • 67th most abundant element in Earth's crust (0.1-0.2 ppm)
    • Rarely found in pure form in nature
    • Usually associated with zinc ores
    • Main minerals include greenockite (cadmium sulfide)
    • Present in some phosphate rocks