nitrogen

(nī′trŏ-jĕn )

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[ nitro- + -gen ]
SYMB: N A colorless, odorless, tasteless, gaseous chemical element, atomic weight (mass) 14.0067, atomic number 7. It occurs free in the atmosphere and forms approx. 80% of the volume of the atmosphere.
CAS # 7727-37-9

A component of all proteins, nitrogen is essential to plant and animal life for tissue building. Generally it is found organically only in the form of compounds such as ammonia, nitrites, and nitrates. These are transformed by plants into proteins and, being consumed by animals, are converted into animal proteins of the blood and tissues.

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