What contribution did cannizaro make to the periodic table?

Stanislao Cannizzaro made a significant contribution to the Periodic Table by providing a clear method for determining atomic weights, which helped resolve discrepancies in the measured weights of elements. At the 1860 Karlsruhe Congress, he presented a systematic approach that emphasized the importance of using relative Atomic Mass based on the concept of equivalent weights. His work allowed chemists to standardize atomic weights, facilitating the accurate organization of elements in the periodic table. This contribution ultimately aided in the development of the modern periodic law and the arrangement of elements by increasing atomic number.