(L. nitrum, Gr. nitron, soda; genes,forming) Discovered by Rutherford in 1772. Air is composed of 78 % nitrogen by volume. Martian atmosphere is 2.6% nitrogen by volume. Nitrogen is responsible for several colors visible in the aurora.
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nonmetal, gas at room temp., odorless,colorless, the elemental gas in inert, compounds are reactive
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fertilizers,used for cooling to -100 C, foods, poisons,present in organic matter and in organic life processes, explosives, nitric acid, Haber process(ammonia)