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    U

    Uranium

    Actinide

    Atomic Number: 92 • Atomic Mass: 238.0300 u • Period: 7 • Group: 102

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f³ 6d¹
    Phase: Solid
    Electronegativity: 1.38
    Protactinium (Pa)Neptunium (Np)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Uranium is the chemical element with the symbol U and atomic number 92. It belongs to the Actinide group and is located in period 7 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:U
    • Atomic Number:92
    • Atomic Mass:238.0300 u
    • Group:102
    • Period:7
    • Category:Actinide
    • Phase at STP:Solid
    • Electronegativity:1.38 (Pauling scale)

    Key Facts

    Fun Fact #1

    Named after planet Uranus

    Fun Fact #2

    Used in dating ancient objects

    Common Uses

    • Nuclear fuel
    • Military applications
    • Radiation shielding