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 we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

“Since 1869, generations of chemists have proposed variations in format to improve the table ... with the Periodic Videos series, produced by Brady Haran. (At the A.C.S. meeting, Dr. Poliakoff ...

The periodic table is a way of arranging all of these chemical elements and putting similar ones together. Image source, Getty Images Each square ... are called 'groups'. In 1869 a Russian ...