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    Sb

    Antimony

    Metalloid

    Atomic Number: 51 • Atomic Mass: 121.7600 u • Period: 5 • Group: 15

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p³
    Phase: Solid
    Electronegativity: 2.05
    Tin (Sn)Tellurium (Te)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Antimony is the chemical element with the symbol Sb and atomic number 51. It belongs to the Metalloid group and is located in period 5 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:Sb
    • Atomic Number:51
    • Atomic Mass:121.7600 u
    • Group:15
    • Period:5
    • Category:Metalloid
    • Phase at STP:Solid
    • Electronegativity:2.05 (Pauling scale)

    Key Facts

    Fun Fact #1

    Known since ancient times

    Fun Fact #2

    Name possibly derived from Greek 'anti-monos' meaning 'not alone'

    Common Uses

    • Flame retardants
    • Batteries
    • Alloys