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    Zr

    Zirconium

    Transition Metal

    Atomic Number: 40 • Atomic Mass: 91.2240 u • Period: 5 • Group: 4

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d²
    Phase: Solid
    Electronegativity: 1.33
    Yttrium (Y)Niobium (Nb)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Occurrence

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

    • 20th most abundant element in Earth's crust (0.013%)
    • Never found as native metal
    • Main ore minerals include zircon (ZrSiO₄) and baddeleyite (ZrO₂)
    • Major deposits in Australia, South Africa, and Brazil
    • Found in S-type stars and present in lunar and Martian rocks