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    Ru

    Ruthenium

    Transition Metal

    Atomic Number: 44 • Atomic Mass: 101.0700 u • Period: 5 • Group: 8

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁷
    Phase: Solid
    Electronegativity: 2.2
    Technetium (Tc)Rhodium (Rh)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Occurrence

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

    • 74th most abundant element in Earth's crust (0.000037%)
    • Occurs naturally with other platinum group metals
    • Found in pentlandite and pyroxinite ores
    • Present in star dust and cosmic rays
    • Major deposits in South Africa, Russia, North and South America