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    Sr

    Strontium

    Alkaline Earth

    Atomic Number: 38 • Atomic Mass: 87.6200 u • Period: 5 • Group: 2

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s²
    Phase: Solid
    Electronegativity: 0.95
    Rubidium (Rb)Yttrium (Y)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Strontium is the chemical element with the symbol Sr and atomic number 38. It belongs to the Alkaline Earth group and is located in period 5 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:Sr
    • Atomic Number:38
    • Atomic Mass:87.6200 u
    • Group:2
    • Period:5
    • Category:Alkaline Earth
    • Phase at STP:Solid
    • Electronegativity:0.95 (Pauling scale)

    Key Facts

    Fun Fact #1

    Named after Scottish village Strontian

    Fun Fact #2

    Gives bright red color in fireworks

    Common Uses

    • Fireworks
    • Glow-in-the-dark products
    • Nuclear batteries