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Bookmark or Share- Nitrogen - WikipediaAt standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas. N 2 forms about 78% of Earth's atmosphere, making it the most abundant uncombined element in air. Because of the volatility of nitrogen compounds, nitrogen is relatively rare in the solid parts of the Earth.
- nitrogen summary | Britannicanitrogen, Gaseous chemical element, chemical symbol N, atomic number 7. A colourless, odourless, tasteless gas, it makes up 78% of Earth’s atmosphere and is a constituent of all living matter. As the nearly unreactive diatomic molecule N 2, it is useful as an inert atmosphere or to dilute other gases.
- 18.8: The Chemistry of Nitrogen - Chemistry LibreTextsBecause the atmosphere contains several trillion tons of elemental nitrogen with a purity of about 80%, it is a huge source of nitrogen gas. Distillation of liquefied air yields nitrogen gas that is more than 99.99% pure, but small amounts of very pure nitrogen gas can be obtained from the thermal decomposition of sodium azide:
- Facts About Nitrogen | Live ScienceNitrogen gas constitutes 78 percent of Earth's air, according to the Los Alamos National Laboratory. On the other hand, the atmosphere of Mars is only 2.6 percent nitrogen. In its gas form,...
- Nitrogen - Properties, Reactions, Compounds | BritannicaHome Science Chemistry. Properties and reaction. Nitrogen is a colourless, odourless gas, which condenses at −195.8 °C to a colourless, mobile liquid. The element exists as N 2 molecules, represented as :N:::N:, for which the bond energy of 226 kilocalories per mole is exceeded only by that of carbon monoxide, 256 kilocalories per mole.
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