Oxygen

atomic number 8 Atomic publication: 8 Atomic Radius: 66 pm Atomic Symbol: O liquescent Point: -218.79 ?C Atomic system of weights: 15.9994 Boiling Point: -182.95 ?C negatron Configuration: [He]2s22p4 Oxidation States: -2 History (Gr. oxys: acid, and genes: forming) For legion(predicate) centuries, workers from time to time realized air was composed of more than unmatched component. The behavior of oxygen and nitrogen as components of air light-emitting diode to the increase of the phlogiston theory of combustion, which captured the minds of chemists for a century.

Oxygen was prepared by some(prenominal) workers, including Bayen and Borch, but they did non know how to cumulate it, did not study its properties, and did not recognize it as an master(a) substance. Priestley is principally credited with its discovery, although Scheele similarly discovered it independently. Its atomic weight was utilize as a standard of comparison for each of the separate elements until 1961 when the International pairing of Pure and Applied chemical science select carbon 12 a...If you want to get a respectable essay, order it on our website: Ordercustompaper.com

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