Who is credited with creating the periodic table in 1869?

Dmitri Mendeleev is recognized for creating the periodic table in 1869 due to his significant contributions to the organization of chemical elements based on their atomic mass and properties. Mendeleev recognized patterns in the elemental properties and arranged the elements in a way that allowed for gaps in the table, predicting the existence and properties of undiscovered elements. This advanced the understanding of chemical behavior and laid the groundwork for future developments in chemistry and the modern periodic table we use today.

The other figures, while they made important contributions to science, did not create the periodic table. Marie Curie is known for her research on radioactivity, John Dalton is credited with the atomic theory, and Erwin Schrödinger is famous for his work in quantum mechanics. Each of these scientists played vital roles in their respective fields, but it was Mendeleev who specifically connected the elements in a systematic way that led to the development of the periodic table.