Atomic Theory Bellringer

1. Used a gold foil experiment to determine his findings.

• Rutherford

• Bohr

• Thomson

• Democritus

Predicted that electrons traveled in fixed orbits around the nucleus.

• Thomson

• Dalton

• Bohr

• Schrodinger

1. Predicted that the mass of the atom is concentrated in the nucleus. 

• Dalton

• Bohr

• Thomson

• Rutherford

Found that electrons do NOT travel in fixed orbits.

• Bohr

• Thomson

• Shrodinger

• Dalton

1. Thought that the atom was a positively charged sphere with negative particles embedded throughout.

• Democritus

• Rutherford

• Thomson

• Bohr