Across
- 3. Discovered Protons
- 4. Father of the Atomic Theory
- 6. Conducted the Oil Drop Experiment
- 8. Developed the Modern Atomic Theory
- 9. Discovered the Energy Levels for Electrons
- 11. Subatomic Particle with No Charge
- 13. Subatomic Particle with a Negative Charge
Down
- 1. Discovered Electrons
- 2. Discovered Neutrons
- 5. Charged Particle caused by a Loss or Gain of Electrons
- 7. Atoms of the Same Element with a Different Number of Neutrons
- 10. Subatomic Particle with a Positive Charge
- 12. Smallest Particle of an Element that Retains it's Properties