The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

Just four years before Mendeleev announced his periodic table ... and so his mother moved the family 1500 km to St. Petersburg, where she managed to get Dmitri into a “good school“, recognising his ...

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

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 as we know it is widely credited to Dmitri Mendeleev, a Russian chemist who kept reference cards on the elements and their atomic weight. In 1869, he noticed that the elements ...

Among the many pioneering chemists in attendance was one Dmitri Ivanovich Mendeleev. In 1862 ... with the Periodic Law of the elements has been so remarkable that the history of the subject would be ...

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.