N

NITROGEN

Definition From "Nitron" and "gen" or Niter-forming. It is composed of about 78% of the atmosphere. An important element in plant nutrition; in the form of protein for animal tissue.

Discovery 1779 by Daniel Rutherford of britain

Uses Purge for missile components, Refrigirant, Insulator

Group of Elements Non-metals(Gas)

Atomic Weight 14.00643; 14.00728

Oxidation State +-1, +-2, +-3, +4, +5

Melting Point -209.9

Boiling Point -195.8

Density 1.25 g/cm3

Electronegativity 3.0