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    Cf

    Californium

    Actinide

    Atomic Number: 98 • Atomic Mass: 251.0000 u • Period: 7 • Group: 102

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁰
    Phase: Solid
    Electronegativity: 1.3
    Berkelium (Bk)Einsteinium (Es)
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    Occurrence

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

    • Does not occur naturally on Earth
    • Synthetic element
    • Produced in specialized nuclear facilities