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7 - Nitrogen diatomic nonmetal

Discovered by Daniel Rutherford in 1772

Nitrogen

Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.

Shell Electrons Orbitals
1 2 2 in 1s
2 5 2 in 2s + 3 in 2p
NitrogenN Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5
14  u Atomic Mass
0.75  Å Atomic Radius
77.4  K Boiling Point
0.71  Å Covalent Radius
0.00125  g/cm³ Density
−6.8 Electron Affinity
3.04 Electronegativity
14.5  eV First Ionization Energy
63.3  K Melting Point
2 Number of Shells
5 Electron Valency
7 Atomic Number
2, 5 Electron Shell Occupations
1.04  J/(g K) Specific Heat