Name:  Nitrogen

Atomic Symbol and Mass Number: N [7]

Electron Configurations of the Elements: [He] 2s   p

Atomic Radii: 65 pm

Electron Affinity: 7 kJ mol-1

Oxidation states:+5,+4,+3,+2,+1, -1, -2, -3

Electronegativity value: 3.04

Elemental Group: Nonmetal

Uses and properties:

• Colorless, odorless, tasteless, diatomic gas at standard temperature and pressure

• Liquid nitrogen at atmospheric pressure between 63 K and 77 K

• Many nitrogen compound are unstable

• Production of ammonia (Haber process) and fertilizers

• Manufacturing nitric acid (Ostwald process)

• Blanket for storage tanks in the chemical and petroleum industries

• Exclusion of oxygen during welding

• Binding with amino acids, DNA, and proteins

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Lewis diagram: