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 Nitrogen Is the chemical element  with the symbol N and atomic number It was the discovered and isolated by scottish physician Daniel Rutherford in 1772, Symbol:N Atomic mass- 14.00674 Atomic number:7 #1 What is the main use of Nitrogen ? Ans- Nitrogen is important to the chemical industry , it is used to make  fertilisers  nitric acid nytion dyes and expiosives, To make these products nitrogen must first be reacted with hydrogen to product ammonia, This is done by the haber process #2 Where is nitrogen found? Ans-The Earth atmosphere is 78% Nitrogen gas or N2 found ,Even though the air there is very littel in the Earth's crust, it can be found in same fairly rare minerals such as saltpeter, Nitrogen can also be found in all living organisms on Earth including plants and animals, #3  What are 3 facts about nitrogen ? Ans:- (1) N jas no odori is tastrless and colories.... (2) Nitrogen gas (n2) makes up 78% of the earth's atmosphere  (3) Atmosphere costains ...