-
300
Democritus
-
Antoine Lavoiser
-
Law of Conservation of Mass
-
Jonh Dalton
-
Dalton's Atomic Theory
suggested the existence of the atom -
Dmitri Mendeleev
-
Cathode Ray Tube
-
JJ Thomson
-
Plum Pudding Atomic Model
-
Robert Millikan
-
Rutherford Model
-
Henry Moseley
-
Bohr Planetary
-
Niels Bohr
developed the Bohr model of the atom. -
Gold foil experiment
-
Erwin Schrodinger
-
Quantum Mechanical Model
-
Ernest Rutherford
-
James Chadwick
-
Electron Cloud Model