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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.
Jul 25, 2024 · Liquid nitrogen has also proven useful in cryogenic research. Nitrogen, nonmetallic element of Group 15 [Va] of the periodic table. It is a colorless, odorless, tasteless gas that is the most plentiful element in Earth’s atmosphere and is a constituent of all living matter. Its atomic number is 7 and it is denoted by the symbol ‘N’ in the ...
Nitrogen gas makes up about 80% of the air we breathe. It's by far the most abundant element in its group in the periodic table and yet it is the last member of its family to be discovered. The other elements in its group, phosphorus, arsenic, antimony and bismuth, had all been discovered, used and abused at least 100 years before nitrogen was ...
Nitrogen (Jawi: نيتروݢن ) ialah unsur kimia di dalam jadual berkala yang mempunyai simbol N dan nombor atom 7. Biasanya ia gas yang tak berwarna, tak berbau, tanpa rasa dan kebanyakannya lengai, dwiatom, bukan logam, nitrogen merangkumi 78 peratus atmosfera Bumi dan juzuk dalam semua tisu hidupan. Nitrogen membentuk banyak jenis sebatian penting seperti asid amino, ammonia ...
Jul 25, 2024 · Nitrogen - Properties, Reactions, Compounds: Nitrogen is a colourless, odourless gas, which condenses at −195.8 °C to a colourless, mobile liquid. The element exists as N2 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. Because of this high bond energy the activation energy for ...
