How Many Atoms Are In Nitrogen

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How Many Atoms Are In Nitrogen

R. Thomas Sanderson 1963–78 Professor of Chemistry, Arizona State University, Tempe. Simple food recipes and more.

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Nitrogen (N), a non-metallic element of group 15 [Va] of the periodic table. A colorless, odorless, and tasteless gas, it is the most abundant element in the Earth’s atmosphere and is part of all life.

About four-fifths of the earth’s atmosphere is nitrogen, which was isolated and recognized as a special substance in the first studies of the atmosphere. Swedish physician Carl Wilhelm Scheele showed in 1772 that air is a mixture of two gases. One of them was called “fire air” because it supports combustion, and the other is called “dirty air” because it remains after the “fire air”. “Combustion air” is actually oxygen and “odorous air” is nitrogen. At the same time, the Scottish physician Daniel Rutherford (who first published his research), the English chemist Henry Cavendish, and the British priest and scientist Joseph Priestley also discovered it. Along with Scheele, he is credited with discovering oxygen. In later studies, a new gas of potassium nitrate (KNO

), which is what nitrogen is called, was created by the French chemist Jean-Antoine-Claude Chaptal in 1790. Nitrogen was first thought of as a chemical element by Antoine-Laurent Lavoisier, whose description of the role of oxygen in heating eventually destroyed the theory of phlogiston, a false idea of ​​heating that was popular at the beginning of the 18th century. Nitrogen cannot support life (Greece:

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Among the elements, nitrogen is the sixth most abundant element in the universe. The Earth’s atmosphere consists of 75.51% by weight (or 78.09% by volume) nitrogen. It is a great source of nitrogen for business and industry. The atmosphere also contains small amounts of ammonia and ammonium salts, as well as nitrogen oxides and nitric acid (the latter produced by thunderstorms and indoor fires). Nitrogen is found free in many meteorites. gases from volcanoes, mines and other mineral springs; in the sun; And to some stars and nebulae.

), but these deposits are in amounts that are not suitable for people’s needs. Another source of nitrogen is guano, which is found in wetlands and dry areas where birds are most likely to be. When combined, nitrogen is found as ammonia and ammonium salts in rain and soil and ammonium (NH) in the ocean.

) ions. Nitrogen makes up, on average, about 16% by weight of special plant compounds called proteins that are present in all living organisms. The normal amount of nitrogen in the soil is 0.3 parts per thousand. The size of the universe (estimating the total amount in the universe) is between 3 and 7 atoms per silicon atom, which is based on standard conditions.

India, Russia, the United States, Trinidad and Tobago, and Ukraine are the top five producers of nitrogen (in the form of ammonia) at the beginning of the 21st century.

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The commercial production of nitrogen is based on the reductive distillation of laboratory air. Nitrogen’s boiling point is -195.8°C (-320.4°F), about 13°C (-23°F) lower than oxygen, so it remains stable. Nitrogen can also be produced on a large scale by burning carbon or hydrocarbons in the air and separating the carbon dioxide and water from the nitrogen plant. On a smaller scale, pure nitrogen is barium azide, Ba(N

Elemental nitrogen can be used as an inert atmosphere for operations that must be free of oxygen and moisture. In its liquid form, nitrogen is useful for cryogenic applications. With the exception of hydrogen, methane, carbon monoxide, fluorine and oxygen gases, almost all chemicals have a low vapor pressure at the boiling point of nitrogen and exist as crystals at that temperature.

In the chemical industry, nitrogen is used as a disinfectant or other corrosive agent for products, as a solvent for compressed gases, as a carrier for heat or chemical removal, and as a flame or flame retardant. In the food industry, nitrogen gas is used to prevent drying, spraying or destroying insects, and liquid nitrogen is used in drying and refrigeration. In electricity, nitrogen is used to prevent oxidation and other chemical reactions, to strengthen wire jackets and to prevent fires. Nitrogen finds uses in the metallurgical industries of welding, welding and hardening where it helps prevent oxidation, corrosion and corrosion. Nitrogen, an inert gas, is used to make foams or expandables, plastics and elastomers, as a propellant gas for aerosol cans, and as a propellant for liquid jets. In medicine, quick freezing with liquid nitrogen can be used to preserve blood, bone marrow, tissue, bacteria, and fluids. Liquid nitrogen has also proven useful in cryogenic experiments.

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