-
Period: 370 to 460
Democritus
formulated the existence of atoms and the plot of the first atomic theory -
Period: to
John dalton
based his theory with partial pressures on the idea that only like atoms in a mixture of gases repel one another -
Period: to
JJ Thompson
known for his discoverment of the electron -
Period: to
Robery Millikan
known for his research on the charge of an electron -
Period: to
Ernest Rutherford
made a real structure of an atom in 1911 -
Period: to
Niels Bohr
atomic model -
Period: to
James Chadwick
known for discovering the Neutron