Periodic Table: Classifications — Who is credited with first publishing a periodic table that organized the elements into a repeating pattern of properties?

Identify key scientists associated with early atomic theory and element classification: J. J. Thomson (discovered the electron), John Dalton (proposed atomic theory), Antoine Lavoisier (compiled a list of elements), and Dmitri Mendeleev.

Learn that Dmitri Mendeleev is credited with first publishing a periodic table that organized elements into a repeating pattern of properties, predicting the existence and properties of undiscovered elements.