Nitrogen

The chemical element with the atomic number 7 and the letter N is known as nitrogen

The chemical element with the atomic number 7 and the letter N is known as nitrogen. The lightest element in group 15 of the periodic table, often known as the pnictogens, nitrogen is a nonmetal. It is a typical element in the cosmos, believed to be eighth in the Milky Way and the Solar System in terms of overall abundance. N2, a colourless and odourless diatomic gas, is created when two of the element’s atoms link together at standard pressure and temperature. The majority of the atmosphere on Earth is made up of N2, making it the most prevalent uncombined element. All living things contain nitrogen, which is principally found in the amino acids that make up proteins, the nucleic acids that make up DNA and RNA, and the energy-transfer molecule adenosine triphosphate. After oxygen, carbon, and hydrogen, nitrogen is the fourth most prevalent element in the human body, making up around 3% of its total mass. The nitrogen cycle explains how the element moves from the atmosphere through the biosphere and organic compounds before returning to the atmosphere.

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