At the middle of the 19th century, 63 chemical elements were known to science. Before Mendeleev’s discovery, attempts at arranging them in some logical way were made by Johann Doebereiner (1829), ...

Dmitry Ivanovic Mendeleev was born in the Siberian provincial town of Tobolsk in February 1834. The youngest of 17 children, "Mityanka" as he was known to his friends, showed an early aptitude for ...

The periodic table has become an icon of science. Its rows and columns provide a tidy way of showcasing the elements — the ingredients that make up the universe. It seems obvious today, but it wasn’t ...

The name of Dmitrii Mendeleev is forever associated with the periodic table, which is found in chemistry laboratories and classrooms around the world. Yet this famous invention, which made sense and ...

This year is the International Year of the Periodic Table, and we’ve been celebrating the sesquicentennial of a remarkable achievement: a rule set for chemists. In 1869, Dmitri Mendeleev published his ...

Who made the first periodic table? Other scientists had previously identified periodicity of elements, but on March 6, 1869 Dmitri Mendeleev (photo) presented the first periodic table. Mendeleev was a ...

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue explores how the periodic table of elements took shape. Learn how the periodic table developed ...

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