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 ...

For example, one oxygen atom combines with two hydrogen atoms to make water (H₂O). A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the 19th ...

The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

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

Among the many pioneering chemists in attendance was one Dmitri Ivanovich Mendeleev. In 1862, French geologist Alexandre-Emile Beguyer de Chancourtois developed the 'telluric screw' – a ...

Although the telluric screw did not correctly display all the trends that were known at the time, de Chancourtois was the first to use a periodic arrangement of all of the known elements, showing that ...

For example, one oxygen atom combines with two hydrogen atoms to make water (H₂O). A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the 19th ...