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    P

    Phosphorus

    Nonmetal

    Atomic Number: 15 • Atomic Mass: 30.9740 u • Period: 3 • Group: 15

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p³
    Phase: Solid
    Electronegativity: 2.19
    Silicon (Si)Sulfur (S)
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    Occurrence

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

    • 11th most abundant element in Earth's crust
    • Not found free in nature due to high reactivity
    • Found in minerals like apatite and phosphorite
    • Essential element for all living organisms