nitrogen
Sign in to saveNitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colourless and odourless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant chemical species in air. Because of the volatility of nitrogen compounds, nitrogen is relatively rare in the s
AI overview
Nitrogen is a chemical element that exists as a colorless, odorless gas (N2) and makes up about 78% of the air we breathe, making it the most abundant chemical species in Earth's atmosphere. It is a common element throughout the universe and belongs to a group of nonmetals on the periodic table.
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Key facts
- Nitrogen.engvar
- en-GB
via Wikipedia infobox
Wikidata facts
- Instance of
- atmophile element
- Subclass of
- nonmetal
- Part of
- hexazine
- Named after
- life
- Mass
- +14.007
- Image
- Fluessiger Stickstoff.jpg
Show 6 more facts
- P61
- Daniel Rutherford (1772)
- P910
Article
28 sectionsContents
- History
- Properties
- Atomic
- Isotopes
- Allotropes
- Chemistry and compounds
- Dinitrogen complexes
- Nitrides, azides, and nitrido complexes
- Hydrides
- Halides and oxohalides
- Oxides
- Oxoacids, oxoanions, and oxoacid salts
- Organic nitrogen compounds
- Occurrence
- Production
- Applications
- Gas{{anchor|Nitrogen_gas}}
- Equipment
- Execution
- Liquid
- Safety
- Gas
- Liquid
- Oxygen deficiency monitors
- See also
- References
- Bibliography
- External links
Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colourless and odourless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant chemical species in air. Because of the volatility of nitrogen compounds, nitrogen is relatively rare in the solid parts of the Earth.
It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772 and independently by Carl Wilhelm Scheele and Henry Cavendish at about the same time. The name was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790 when it was found that nitrogen was present in nitric acid and nitrates. Antoine Lavoisier suggested instead the name azote, from the "no life", as it is an asphyxiant gas; this name is used in a number of languages, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds.