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Кислород (@1856)
oxygen [Анг.]
 (Gr. oxys: acid, and genes: forming) For many centuries, workers occasionally realized air was composed of more than one component. The behavior of oxygen and nitrogen as components of air led to the advancement of the phlogiston theory of combustion, which captured the minds of chemists for a century. Oxygen was prepared by several workers, including Bayen and Borch, but they did not know how to collect it, did not study its properties, and did not recognize it as an elementary substance.

Priestley is generally credited with its discovery, although Scheele also discovered it independently.

Its atomic weight was used as a standard of comparison for each of the other elements until 1961 when the International Union of Pure and Applied Chemistry adopted carbon 12 as the new basis. 
A Periodic Table of the Elements at Los Alamos National Laboratory

Тип: Объект
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