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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.
Oxygen is the 8th element in the periodic table and has a symbol of O and atomic number of 8. It has an atomic weight of 15.999 and a mass number of 16. Oxygen has eight protons and eight neutrons in its nucleus, and eight electrons in two shells.
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. Other names: Molecular oxygen; Oxygen molecule; Pure oxygen; O2; Liquid oxygen; UN 1072; UN 1073; Dioxygen. Permanent link for this species.
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.
Element Oxygen (O), Group 16, Atomic Number 8, p-block, Mass 15.999. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
ChemSpider record containing structure, synonyms, properties, vendors and database links for Molecular oxygen, 7782-44-7, Oxygen.
⬇. Physical data. Electronic data. Shells: 2, 6. Orbitals: [He] 2s 2 2p 4. Electronegativity: 3.5, 3.5. 1. Ionization potential: 13.6181 eV. 2. Ionization potential: 35.117 eV. 3. Ionization potential: 54.934 eV. Oxidation states: -2, -1. Electrical conductivity: -- Thermal data. Melting point: -218.4 °C. Boiling point: -182.962 °C.
