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    Ga

    Gallium

    Post Transition

    Atomic Number: 31 • Atomic Mass: 69.7230 u • Period: 4 • Group: 13

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p¹
    Phase: Solid
    Electronegativity: 1.81
    Zinc (Zn)Germanium (Ge)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Gallium is the chemical element with the symbol Ga and atomic number 31. It belongs to the Post Transition group and is located in period 4 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:Ga
    • Atomic Number:31
    • Atomic Mass:69.7230 u
    • Group:13
    • Period:4
    • Category:Post Transition
    • Phase at STP:Solid
    • Electronegativity:1.81 (Pauling scale)

    Key Facts

    Fun Fact #1

    Can melt in your hand

    Fun Fact #2

    Used in high-temperature thermometers

    Common Uses

    • Semiconductors
    • LEDs
    • Solar panels