Introducing
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
Gold Foil Experiment & Plum Pudding Atomic Model
Gold Foil Experiment & Plum Pudding Atomic Model
By Jenna Black, Dyani Palmer, Perla Hernandez
Gold Foil Experiment
What's The Difference?
Plum Pudding Atomic Model
The Plum Pudding Model was considered incorrect or invalid five years later and the gold foil experiment replaced it.
- Introduced by Ernest Rutherford in 1909
- Hans Geiger and Ernest Marsden were his assistants
- He set up an alpha emitter, when the alpha particles hit the foil sheet some of them went straight, some were reflected and some were deflected.
- He concluded that an atom is mainly an empty space that is why most of the particles went straight through.
- Introduced by J.J. Thompson in 1904
- He discovered there are negatives charges in an atom by using the cathode ray tube.
- The purpose of this model was to explain why most atoms were neutral.
J. J. Thomson's plum pudding model showed an atom to be made up of positively charged matter in which there are negatively charged particles to balance out the positive charge on the rest of the atom.
Rutherford's gold foil experiment showed that the positive charge in the atom was concentrated in a very small and very dense space in the center of an atom that became known as the nucleus. The rest of the atom was then seen as mostly empty space containing negatively charged particles.