"Daniel Rutherford (1749-1819), a Scottish scientist published his discovery of nitrogen in his PhD thesis in 1772 1,5."
"Nitrogen (chemical symbol N) is one of the basic organic elements and is a key constituent of amino acids, the building blocks of proteins, and of nucleic acids (i.e. DNA and RNA). On earth it is the most abundant element found in its pure form and comprises 78% of all breathable air."
"nitrogen gas is the main constituent of the intradiskal and intra-articular gas seen as part of the vacuum phenomenon"
Expected headings
"Basic chemistry"