Oxygen: Difference between revisions
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Dioxygen provides the [[energy]] released in combustion and aerobic cellular respiration, and many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and [[bone]]. Most of the mass of living organisms is oxygen as a component of [[water]], the major constituent of lifeforms. | Dioxygen provides the [[energy]] released in combustion and aerobic cellular respiration, and many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and [[bone]]. Most of the mass of living organisms is oxygen as a component of [[water]], the major constituent of lifeforms. | ||
Common uses of oxygen include production of [[steel]], | Common uses of oxygen include production of [[steel]], [[plastic]]s and [[textiles]], brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving. | ||
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Revision as of 15:19, 21 November 2022
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is Earth's most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe.
Dioxygen provides the energy released in combustion and aerobic cellular respiration, and many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and bone. Most of the mass of living organisms is oxygen as a component of water, the major constituent of lifeforms.
Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.
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| This article uses material from the Wikipedia article Oxygen, which is released under the Creative Commons Attribution-ShareAlike 3.0 Unported License (view authors). | 
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