7 N Nitrogen 14.007 u

Nitrogen

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Period
2
Group
15
Block
p-block
Phase (STP)
Gas

Nitrogen makes up about 78% of Earth's atmosphere. It is essential for life as a component of amino acids, proteins, and DNA.

Appearance: Colorless gas

Physical Properties

Atomic Mass 14.007 u
Density 0.0012506 g/cm³
Melting Point -210.0 °C
Boiling Point -195.8 °C
Phase at STP Gas
Atomic Radius 75.0 pm

Electronic Properties

Electronegativity 3.04
Ionization Energy 1402.3 eV
Electron Affinity -7.0 eV
Valence Electrons 5

Electron Configuration

Configuration [He] 2s² 2p³

Electron Shell Configuration

Nitrogen electron shell configuration N 2e⁻ 5e⁻

Position in Periodic Table

Nitrogen position in the periodic table N

Discovery

Discovered by: Daniel Rutherford
Year: 1772

Compounds Containing Nitrogen

More Nonmetal

Frequently Asked Questions

What is Nitrogen?
Nitrogen (N) is a chemical element with atomic number 7. It is a gas at standard temperature and pressure, classified as a nonmetal.
What are the key properties of Nitrogen?
Nitrogen has an atomic mass of 14.007 u, density of 0.0012506 g/cm³, melting point of -210.0°C, boiling point of -195.8°C.
What is the electron configuration of Nitrogen?
The electron configuration of Nitrogen is [He] 2s2 2p3. It is in the p-block of the periodic table.
Who discovered Nitrogen?
Nitrogen was discovered by Daniel Rutherford in 1772.
What is the electronegativity of Nitrogen?
Nitrogen has an electronegativity of 3.04 on the Pauling scale.