Who did what and when crossword

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Across
  1. 1. what degree did Heisenburg receive in 1923
  2. 3. what are hardons holding a fraction of charge called
  3. 4. who organized the atoms for peace conference in 1955
  4. 5. what idea is that things may have dual nature, but we can only experience one aspect at a time
  5. 7. Heisenburg discovered you could measure position and what other thing of an electron
  6. 10. what principle is used to measure properties of an electron
  7. 12. which scientist became professor at the University of Gottinburg
  8. 14. which son of bohr followed in his footsteps
Down
  1. 1. what noble prize did Murray win in 1969
  2. 2. what type of system did heisenburg apply to atomic physics
  3. 6. Bohr founded the institute for what type of physics
  4. 8. which scientist entered Yale at 15
  5. 9. where did Murray obtain his PhD
  6. 11. Bohr discovered what existed at at set levels or energy
  7. 13. how many families did Murray separate particles into