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Dmitri Mendeleev presents the first periodic table to the Russian Chemical Society.
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Dmitri Mendeleev
Russian chemist (1834–1907)
Dmitri Ivanovich Mendeleev was a Russian chemist known for formulating the periodic law and creating a version of the periodic table of elements. He used the periodic law not only to correct the then-accepted properties of some known elements, such as the valence and atomic…Source: Wikipedia (CC BY-SA)
Periodic table
Tabular arrangement of the chemical elements
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ("groups"). An icon of chemistry, the periodic table is widely used in physics and other sciences. It is a depiction of the…Source: Wikipedia (CC BY-SA)