The famous scientist who developed the periodic table of elements is Dmitri Mendeleev. In 1869, Mendeleev created the table based on the properties of elements and their atomic weights. His innovative approach allowed him to predict the existence and properties of elements that had not yet been discovered. Mendeleev’s periodic table made it easier for scientists to understand elemental relationships, leading to further advancements in chemistry. His work laid the foundation for modern chemistry and educational approaches to the study of elements.