In order to celebrate the 150th anniversary of the birth of the periodic table of elements, the United Nations announced that 2019 will be designated as the International Year of the Periodic Table of Chemical Elements. On September 29, 2023, UNESCO launched the “International Year of the Periodic Table of Chemical Elements” at its headquarters in Paris. Dmitry Mendeleev was a famous Russian chemist. He discovered the periodic law of chemical elements and compiled the world’s first periodic table of elements based on the periodic law of elements, including all 63 elements that had been discovered at that time. , giving the elements their own homes. He also predicted…