Atomic Theory

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Across
  1. 5. A particle with a negative charge
  2. 7. The collective name for the three smaller parts of an atom
  3. 8. Scientist who discovered atoms have charges; plum pudding model
  4. 9. The center of the atom
  5. 10. The particle that orbits the nucleus
  6. 11. A particle with no charge
Down
  1. 1. First scientist to propose atomic theory; bowling ball model
  2. 2. First theorized that matter is made up of tiny particles
  3. 3. Scientist who discovered that atoms have energy levels
  4. 4. A particle with a positive charge
  5. 6. Scientist who discovered the nucleus in the gold foil experiment