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

National Periodic Table Day, observed annually on February 7, honors one of the most significant achievements in scientific ...

The seventh row of the table was completed in 2016 when Tennessine, Nihonium, Moscovium, and Oganesson were added. Elements ...

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

Mendeleev did not have the easiest of starts in life ... and so his mother moved the family 1500 km to St. Petersburg, where she managed to get Dmitri into a “good school“, recognising his potential.

A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the nineteenth century. The modern periodic table is based closely on the ideas he used.

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 ...

A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the nineteenth century. The modern periodic table is based closely on the ideas he used.