what is a nitrogen please tell me
moon38:
n2 is a gas
nitrogen is a gas
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the chemical element of atomic number 7, a colourless, odourless unreactive gas that forms about 78 per cent of the earth's atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant
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It is a gas which takes up 78 percent of air.
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