History of the models of the atom

Democritus's invents of atomos (BC)

100

Demoncritus postulates a theory whereby the smallest particle is the atom, or atomos - "uncuttable".

John Dalton proposes atomic theory

Jan 1, 1803

John Daltons Theory
John Dalton used experimental evidence to put forward his atomic theory which had 5 postulates

J.J THOMSON puts forward his plum pudding model

Jan 1, 1904