-
The theory of atomism. Showed that various different items could all be broken down, splitting molecules into atoms of hydrogen, oxygen, and carbon. Made the billiard ball model. -
Cathode Ray Tube (CRT) Experiment. Showed that all atoms contained some form of negatively charged things he named, “Electrons”. Made Plum Pudding Model. -
Gold Foil Experiment; Observations: Most particles pass through, some are deflected in different directions, and very few bounce back. Made Rutherford Atomic Model. -
Hydrogen Atom and how the electrons travel certain distances or axis, from the nucleus. These were known as shells. Made Planetary Model. -
The beryllium bombardment experiments. Contributed Neutrons to Quantum Model and allowed for the discovery of Isotopes in atoms.