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    Al

    Aluminum

    Post Transition

    Atomic Number: 13 • Atomic Mass: 26.9820 u • Period: 3 • Group: 13

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p¹
    Phase: Solid
    Electronegativity: 1.61
    Magnesium (Mg)Silicon (Si)
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    Overview

    Aluminum is the chemical element with the symbol Al and atomic number 13. It belongs to the Post Transition group and is located in period 3 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:Al
    • Atomic Number:13
    • Atomic Mass:26.9820 u
    • Group:13
    • Period:3
    • Category:Post Transition
    • Phase at STP:Solid
    • Electronegativity:1.61 (Pauling scale)

    Key Facts

    Fun Fact #1

    Most abundant metal in Earth's crust

    Fun Fact #2

    Doesn't occur as a free metal in nature

    Common Uses

    • Construction
    • Packaging
    • Transportation