Oxygen

Oxygen Atomic Number: 8 Atomic wheel spoke: 66 pm Atomic Symbol: O melt down direct: -218.79 ?C Atomic system of weights: 15.9994 Boiling Point: -182.95 ?C Electron Configuration: [He]2s22p4 Oxidation States: -2 History (Gr. oxys: acid, and genes: forming) For legion(predicate) centuries, workers now and again realized air was composed of more than unmatched component. The appearance of oxygen and nitrogen as components of air light-emitting diode to the packaging of the phlogiston theory of combustion, which captured the minds of chemists for a century.

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

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