Mendeleev's Periodic Table
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Dmitri Mendeleev (Mendeleyev), a Russian chemist, was the first scientist to make a periodic table similar to the one we use today. Mendeleev noticed the elements exhibited periodic properties when they were arranged in order of increasing atomic weight.
from 1st English ed. of Mendeleev's Principles of Chemistry (1891, from the Russian 5th ed.)More Science Image Galleries
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