Atomic number 7
Name Nitrogen
Atomic mass 14.0067(2)
Electronic configuration [He] 2s2 2p3
Electronegativity 3.04
Atomic radius 75 pm
Ion radius 146 (-3) pm
Van der Waals radius 155 pm
Ionization energy 1402 kJ/mol
Electron affinity -7 kJ/mol
Oxidation states -3, -2, -1, 1, 2, 3, 4, 5
Standard physical state gas
Bonding type diatomic
Melting point 63 °C
Boiling point 77 °C
Density 0.001251 g/cm³
Type nonmetal
Year discovered 1772