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NITROGEN: animation of a nitrogen molecule, N2 molecule

NITROGEN: forms the bulk of the atmosphere, comprising nearly four fifths of AIR. Under normal conditions it is a gas. It exists as a molecule of two nitogen atoms joined by a triple bond.

INDUSTRIAL USES OF NITROGEN: nitrogen is hydrogenated to create ammonia and is used in fabrication because it is unreactive.

BIOLOGICAL USES OF NITROGEN: used by plants following fixation by bacteria.

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