Nitrogen is the chemical element in the periodic table that has the symbol N and atomic number 7.
Nitrogen constitutes 78 percent of Earth's atmosphere and is a constituent of all living tissues.
Nitrogen forms many important compounds such as amino acids, ammonia, nitric acid, and cyanides.
For more information about the topic Nitrogen, read the full article at Wikipedia.org, or see the following related articles:
Recommend this page on Facebook, Twitter,
and Google +1:
Other bookmarking and sharing tools: