-
John Dalton
Created the Atomic Theory -
Joseph Louis Proust
Created the Law of Definite proportions. -
Julius Plücker
Built one of first Cathode Ray tubes -
Dmitri Mendeleev
developed 1st periodic table of elements -
J.J. Thomson
Discovery of electrons and plum pudding model -
Robert Millikan
Determined the charge of an electron -
Ernest Rutherford
Electron cloud model and established that the nucleus is small and dense -
H.G.J. Moseley
Uses x-ray tubes to determine charge of nuclei -
Francis Aston
Discovered isotopes -
James Chadwick
Proved the existence of neutrons -
Otto Hahn
discovered nuclear fission, in which the nucleus of an atom breaks up into two separate nuclei, while experimenting with uranium.
