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en.wikipedia.org/wiki/Nitrogen

Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772.

pubchem.ncbi.nlm.nih.gov/compound/Nitrogen

Nitrogen is an element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up ...

www.uigi.com/nitrogen.html

Properties, uses and applications of nitrogen gas and nitrogen liquid. UIG is a supplier of nitrogen and other industrial gases, new and used industrial gas plants ...

www.praxair.com/gases/buy-liquid-nitrogen-or-compressed-nitrogen-gas

Discover the wide range of liquid nitrogen (N 2 ) and nitrogen gas purities and concentrations available for purchase.

www.rsc.org/periodic-table/element/7/nitrogen

Element Nitrogen (N), Group 15, Atomic Number 7, p-block, Mass 14.007. Sources, facts, uses ... State at 20°C, Gas, Key isotopes, 14N. Electron configuration ...

www.livescience.com/28726-nitrogen.html

Sep 27, 2017 ... Properties, sources and uses of nitrogen, one of the most abundant gases in Earth's atmosphere.

www.britannica.com/science/nitrogen

nitrogen (N): Nitrogen, gas that is the most plentiful element in Earth's atmosphere.

www.ask.com/youtube?q=Nitrogen+Gas&v=ZVj7a79cNcs
Oct 3, 2012 ... visit http://www.makemegenius.com for more free science videos for kids.

www.slate.com/articles/news_and_politics/jurisprudence/2014/05/death_by_nitrogen_gas_will_the_new_method_of_execution_save_the_death_penalty.html

May 22, 2014 ... This new proposed method, known as nitrogen asphyxiation, seals the condemned in an airtight chamber pumped full of nitrogen gas, causing ...