Back to Elements
    Li

    Lithium

    Alkali Metal

    Atomic Number: 3 • Atomic Mass: 6.9400 u • Period: 2 • Group: 1

    Electron Configuration: 1s² 2s¹
    Phase: Solid
    Electronegativity: 0.98
    Helium (He)Beryllium (Be)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Lithium is the chemical element with the symbol Li and atomic number 3. It belongs to the Alkali Metal group and is located in period 2 of the periodic table. It exists as a solid under standard conditions.

    Basic Information

    • Symbol:Li
    • Atomic Number:3
    • Atomic Mass:6.9400 u
    • Group:1
    • Period:2
    • Category:Alkali Metal
    • Phase at STP:Solid
    • Electronegativity:0.98 (Pauling scale)

    Key Facts

    Fun Fact #1

    Lightest metal

    Fun Fact #2

    Created in the Big Bang but most has since decayed

    Common Uses

    • Batteries
    • Aerospace alloys
    • Mood-stabilizing drugs