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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.
18 wrz 2024 · 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.
Oxygen is a highly reactive non-metal and the most abundant element in the biosphere of Earth. It has various physical and chemical properties, such as colorless gas, high electronegativity, and oxidation state of -2, and is widely used in industry, medicine and life support.
Learn about the discovery, history, biological role, and natural abundance of oxygen, the most common element in the Earth's crust and atmosphere. Find out how oxygen is prepared, used, and measured in the laboratory and industry.
Learn about the discovery, properties, and uses of oxygen, a chalcogen and a nonmetal. Find out how oxygen affects combustion, respiration, and the environment.
Physical Properties. - Atomic weight: 15.999. - Melting point: 54.36 K (-218.79°C) - Boiling point: 90.20 K (-182.95°C)
29 wrz 2014 · Breath of life. Oxygen is the third most abundant element in the universe, according to the Thomas Jefferson National Accelerator Facility. However, its reactivity made it relatively rare in...
