The periodic table, also known as periodic table of elements, was published for the 1st time in 1869 by the Russian chemist Dmitry Mendeleev, as he observed chemical similarities of certain elements. He was also able to predict some properties of unidentified elements, expected to fill gaps within the table.
The modern periodic table now provides a useful framework for analyzing chemical reactions, and continues to be a reference tool for students and researchers in Chemistry.
