Ernest Rutherford

STUDY
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Terms in this set (...)

When and what
1909; Gold Foil Experiment
Setup
Rutherford shot positively charged Alpha Particles at gold foil
Results
1. Most of Alpha particles went straight through foil
2. some alpha particles went through foil, but were deflected at angles
3. a few alpha particles were reflected back towards the source
Conclusions
1. Atoms are mostly empty space
2. There is a small area in the atom that has positive charge
3. There is a small, very dense part to an atom
Lead to
Discovery of the Nucleus