Nitrogen - N

Atomic Number 7     Atomic Mass 14.00674     State gas

Color colorless     Electronegativity 3.04

Melting Point -209.86°C      Boiling Point -195.8°C

Natural Isotopes N-14 99.634%   N-15 0.366%

Abbreviated Electron Configuration [He] 2s2 2p3

Discovered by Daniel Rutherford in 1772.