All the different elements are arranged in a chart called the periodic table. A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the 1869.

On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table.

Germanium's existence was predicted before anyone isolated it. This was a triumph for Dmitri Mendeleev in his construction of the periodic table. By 1869, Mendeleev had assembled a crude table of the ...

Many scientists worked on the problem of organizing the elements, but Dmitri Mendeleev published his first version of the periodic table in 1869, and is most often credited as its inventor. Since then ...

The periodic table of elements is a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri ...

The properties of the element change as you move across the row, but are similar as you move down a column. Dmitri Mendeleev, who arranged the first version of our current table, predicted the ...