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    Si

    Silicon

    Metalloid

    Atomic Number: 14 • Atomic Mass: 28.0850 u • Period: 3 • Group: 14

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p²
    Phase: Solid
    Electronegativity: 1.9
    Aluminum (Al)Phosphorus (P)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Silicon is the chemical element with the symbol Si and atomic number 14. It belongs to the Metalloid group and is located in period 3 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:Si
    • Atomic Number:14
    • Atomic Mass:28.0850 u
    • Group:14
    • Period:3
    • Category:Metalloid
    • Phase at STP:Solid
    • Electronegativity:1.9 (Pauling scale)

    Key Facts

    Fun Fact #1

    Second most abundant element in Earth's crust

    Fun Fact #2

    Base element for computer chips

    Common Uses

    • Electronics
    • Solar cells
    • Glass