Card Set Information
Stated science had to be based on measurement and experiment
Law of conservation of mass
Leucippus and Democritus
First proposed atoms, matter was composed of small, indestructible particles.
Observations about Law of definite proportions
Law of Multiple proportions, atomic theory.
Cathode rays, discovered electron. Plum pudding model.
Found charge of oil droplets
Henri Becquerel and Marie Curie
Gold foil experiment, discovered nucleus and protons. NUCLEAR THEORY