Nuclear Fission

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Across
  1. 4. hundreds of these in reactor
  2. 7. power for reactors
  3. 9. uranium isotope
  4. 11. number of the reactors in US
  5. 13. uranium turns into
  6. 15. can be caused by radiation
  7. 16. place of first electricity
  8. 18. leader in nuclear power
  9. 20. the final process, harmful
Down
  1. 1. percent of worlds power
  2. 2. year of first electricity
  3. 3. emitted by the process
  4. 5. number of years before refueling
  5. 6. early research was focused on
  6. 8. first testing reactor
  7. 10. number of operational reactors
  8. 12. not released by the process
  9. 14. achieved fission
  10. 17. alternative source, costly
  11. 19. weapons created by the process