what is oxygen explain
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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. Wikipedia
Symbol: O
Atomic mass: 15.999 u
Atomic number: 8
Electron configuration: [He] 2s²2p⁴
Electronegativity: 3.44
Discoverers: Joseph Priestley, Antoine Lavoisier, Carl Wilhelm Scheele
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