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.