Nitrogen,
symbol N, gaseous element that makes up the largest portion of the Earth's atmosphere.
The atomic number of nitrogen is 7.
Nitrogen was isolated by the British doctor Daniel
Rutherford in 1772 and recognized as an elemental gas by the French chemist Antoine
Laurent Lavoisier about 1776Nitrogen was isolated by the British
doctor Daniel Rutherford in 1772 and recognized as an elemental gas by the
French chemist Antoine
Laurent Lavoisier about 1776
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