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Who discovered the periodic table?

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Who discovered the periodic table?

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Mendeleyev is regarded as the primary discoverer of the periodic table. However, in 1868, Lothar Meyer, a German chemist, had prepared a table which in many respects resembled the present periodic table. He did not publish this work until after the appearance of Mendeleev’s first paper on the subject in 1869. His table was very similar to that of Mendeleev, but it contained some improvements and was, perhaps, influential in causing some of the revisions made by Mendeleev in the second version of his table, published in 1870. In general, Meyer was more impressed by the periodicity of the physical properties of the elements, while Mendeleev saw more clearly the chemical consequences of the periodic law.

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In 1869, Mendeleev, a Russian chemist, made a list of all the chemical elements that were known at that time, sorted according to increasing atomic mass. There were many gaps in the table, and according to them, Mendeleev was able to forecast that new elements would be found to fill the gaps. Mendeleev’s discovery was possible only because of former scientific knowledge, and as a matter of fact, a German chemist called Lothar Meyer made the same discovery as Mendeleev at about the same time.

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