Science MT 2

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Across
  1. 2. its smaller than an atom
  2. 5. proposed the quantum mechanical model
  3. 9. made the bohr planetary model
  4. 10. experiment that found the protons
  5. 12. model a model that has electrons orbiting the nucleus
  6. 13. discovered electrons
  7. 14. a theory about atoms
Down
  1. 1. made atomic theory
  2. 3. negatively charged subatomic particle
  3. 4. positively charged particle
  4. 5. made up of atoms
  5. 6. equates to the number of protons
  6. 7. has the protons and neutrons inside
  7. 8. a neutral subatomic particle
  8. 11. discovered the protons