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1 gen 1869 anni - 1869 - Russian chemist Dmitri 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. ←Dmitri Mendeleev

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History of the Periodic table

ByNathan GREEN
2 dic 2017
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Data:

1 gen 1869 anni
Adesso
~ 156 years ago

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