Nitrogen is a chemical element which has the symbol N and atomic number 7 in the periodic table. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78.08% percent of Earth's atmosphere. Nitrogen is a constituent element of all living tissues and amino acids. Many industrially important compounds, such as ammonia, nitric acid, and cyanides, contain nitrogen.

Notable characteristics

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Nitrogen is a non-metal, with an electronegativity of 3.0. It has five electrons in its outer shell and is therefore trivalent in most compounds. Nitrogen condenses at 77° K at atmospheric pressure and freezes at 63° K. Liquid nitrogen is a common cryogen.

Occurrence

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Nitrogen is the largest single component of the Earth's atmosphere (78.084% by volume, 75.5% by weight).

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@YiffyGriffy Texas sounds like it is perfectly insane to my taste. Out of the oven and into the liquid nitrogen tank!
KimaEri (Kima Eri) Fri, 25 Dec 2009 01:48:57 -0000
@YiffyGriffy Texas sounds like it is perfectly insane to my taste. Out of the oven and into the liquid nitrogen tank!
driving with dermatologists: liquid nitrogen canisters hiss open on sharp corners while discussing the ancient viruses trapped in dna
altissima (Dawn Danby) Fri, 25 Dec 2009 00:33:24 -0000
driving with dermatologists: liquid nitrogen canisters hiss open on sharp corners while discussing the ancient viruses trapped in dna
Fat Duck Cookbook for @anthony_king. Where might one find a liquid nitrogen purveyor on Xmas Day?
toscorlando (Hilary Reynolds) Thu, 24 Dec 2009 22:58:30 -0000
Fat Duck Cookbook for @anthony_king. Where might one find a liquid nitrogen purveyor on Xmas Day?
Must be close to absolute zero outside. I swear I saw a puddle of liquid nitrogen in the street.
xph0ria (Andrew Ellis) Thu, 24 Dec 2009 16:27:14 -0000
Must be close to absolute zero outside. I swear I saw a puddle of liquid nitrogen in the street.
Liquid nitrogen + #miracleboy = <3
lelebobachoy (Margaret) Thu, 24 Dec 2009 13:07:12 -0000
Liquid nitrogen + #miracleboy = <3
New Cooler Master on my desk! Feels like there's a platform of liquid nitrogen under my laptop now. It's so cool...
DanielKhong25 (Daniel Khong) Thu, 24 Dec 2009 07:18:27 -0000
New Cooler Master on my desk! Feels like there's a platform of liquid nitrogen under my laptop now. It's so cool...

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