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Oxygen is a 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 a potent oxidizing agent that readily forms oxides with most elements as well as with other compounds.
Molecular oxygen (O 2) is a diatomic molecule that is composed of two oxygen atoms held together by a covalent bond. Molecular oxygen is essential for life, as it is used for respiration by many organisms. It's also essential for fossil fuel combustion.
Dioxygen is a diatomic oxygen, a gas molecular entity and an elemental molecule. It has a role as an anti-inflammatory drug, a reagent, a nutrient, a micronutrient, an oxidising agent, a human metabolite, a member of food packaging gas and a Saccharomyces cerevisiae metabolite.
Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere.
O₂ is not a compound but a diatomic molecule, as it consists of two atoms of the same element, oxygen. Understanding oxygen is pivotal in various domains from health to environmental science. This guide has illuminated oxygen’s properties, uses, and significance.
Glossary. Allotropes Some elements exist in several different structural forms, called allotropes. Each allotrope has different physical properties. For more information on the Visual Elements image see the Uses and properties section below. < Move to Nitrogen. Move to Fluorine > Oxygen. Discovery date. 1774. Discovered by.
Oxygen is produced in various ways. The process of photochemical dissociation in which water molecules are broken up by ultraviolet rays produces about 1-2% of our oxygen. Another process that produces oxygen is photosynthesis which is performed by plants and photosynthetic bacteria.
Molecular Oxygen is Paramagnetic. We now turn to a molecular orbital description of the bonding in \(\ce{O2}\). It so happens that the molecular orbital description of this molecule provided an explanation for a long-standing puzzle that could not be explained using other bonding models.
The single oxygen atoms latch onto O 2 molecules to form O 3 (the chemical formula for ozone). The stratosphere has higher concentrations of O 3 because there is more UV present. The ozone layer filters out UV, which reduces the opportunity to split O 2 molecules in the lower atmosphere (troposphere), where we live.
Oxygen. Formula: O 2. Molecular weight: 31.9988. IUPAC Standard InChI: InChI=1S/O2/c1-2. IUPAC Standard InChIKey: MYMOFIZGZYHOMD-UHFFFAOYSA-N. CAS Registry Number: 7782-44-7. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file. The 3d structure may be viewed using Java or Javascript.