brunopg2007 brunopg2007

14-01-2021
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How was the periodic table developed?

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ashlynmoser05 ashlynmoser05

14-01-2021

Answer: In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them

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