he creator of the periodic table of chemical elements is Dmitri Ivanovich Mendeleev, a Russian chemist. In 1869, he introduced the first version of the periodic table. Mendeleev arranged the elements in a table based on the repeating pattern of their chemical properties, allowing him to predict the existence of ...

elements that had not yet been discovered and to leave spaces for them in the table. These predictions were later confirmed with the discovery of new elements, which greatly enhanced the credibility of Mendeleev's periodic table.