Atomic Theories and Models

6. _____ of rays by electronically charged plates was evidence for "bodies much smaller than atoms".
9. Aristotle's 4 elements were wrong because it was impossible to ____ any of them.
11. Aristotle rejected his idea resulting in the slow of atomic theory for 2,000 years.
13. The Quantum Mechanical Model _____ the electrons location
14. Preformed the gold foil experiment
18. The high-vacuum ____-ray was used to discover the electron
19. Heisenberg's ____ Principle
20. What Dalton thought an atom was like
21. Preformed the oil drop experiment

1. Who expanded upon the Bohr model?
2. Is the "body much smaller than an atom".
3. Greek for indivisible
4. Rutherford says the nucleus is 10,000 times _____ than the atom.
5. Discovered the electron
7. Discovered the neutron
8. Is another name for Rutherford's model
10. The oil drop experiment discovered the charge and mass of the ___.
12. Claimed there were only four elements
15. Daltons Atomic Theory says that all ____ of a given element are identical in mass and volume
16. A chemical _____ is a rearrangement of atoms
17. Who came up with the revolutionary idea that electrons lined up in a regular pattern