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    H

    Hydrogen

    Nonmetal

    Atomic Number: 1 • Atomic Mass: 1.0080 u • Period: 1 • Group: 1

    Electron Configuration: 1s¹
    Phase: Gas
    Electronegativity: 2.2
    Helium (He)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Hydrogen is the chemical element with the symbol H and atomic number 1. It belongs to the Nonmetal group and is located in period 1 of the periodic table. It exists as a gas under standard conditions.

    Basic Information

    • Symbol:H
    • Atomic Number:1
    • Atomic Mass:1.0080 u
    • Group:1
    • Period:1
    • Category:Nonmetal
    • Phase at STP:Gas
    • Electronegativity:2.2 (Pauling scale)

    Key Facts

    Fun Fact #1

    Lightest element in the periodic table

    Fun Fact #2

    Most abundant element in the universe

    Common Uses

    • Fuel
    • Fertilizer production
    • Oil refining