he creator of the periodic table of chemical elements is Dmitri Ivanovich Mendeleev, a Russian chemist. In 1869, he introduced the first version of the periodic table. Mendeleev arranged the elements in a table based on the repeating pattern of their chemical properties, allowing him to predict the existence of ...

it's exciting 
In fact, he made a revolution in the world with his creations 155 $DEGEN

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