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    N

    Nitrogen

    Nonmetal

    Atomic Number: 7 • Atomic Mass: 14.0070 u • Period: 2 • Group: 15

    Electron Configuration: 1s² 2s² 2p³
    Phase: Gas
    Electronegativity: 3.04
    Carbon (C)Oxygen (O)
    OverviewPropertiesAtomic StructureOccurrenceApplicationsHistory

    Overview

    Nitrogen is the chemical element with the symbol N and atomic number 7. It belongs to the Nonmetal group and is located in period 2 of the periodic table. It exists as a gas under standard conditions.

    Basic Information

    • Symbol:N
    • Atomic Number:7
    • Atomic Mass:14.0070 u
    • Group:15
    • Period:2
    • Category:Nonmetal
    • Phase at STP:Gas
    • Electronegativity:3.04 (Pauling scale)

    Key Facts

    Fun Fact #1

    Makes up 78% of Earth's atmosphere

    Fun Fact #2

    Essential for protein formation

    Common Uses

    • Nitrogen fertilizers
    • Nitric acid
    • Nitrogen gas