Across
- 5. Created orbitals
- 8. Equipment Thomson used
- 10. Defined an element as any substance that cannot be decomposed into a smaller substance
- 11. Said there were 4 elements
- 15. Orbits were not always circular but in a pattern
- 17. Model developed by Thomson
- 19. Discovered neutron
- 20. Created uncertainty principle
Down
- 1. Nuclear Atom Model
- 2. developed the idea of atoms
- 3. refined Rutherfords idea
- 4. Milikan's experiment
- 6. Neutral particle
- 7. Greek for indivisible
- 9. Gold foil experiment
- 12. Billiard ball model
- 13. Bohr's model of atom
- 14. Discovered electron
- 16. Experiment that led to discovery of nucleus
- 18. Discovered charge and mass of an electron