Chemistry: The puzzler

1234567891011121314151617181920212223242526272829
Across
  1. 3. something happens a lot of times
  2. 7. neutral particle
  3. 12. circles around
  4. 15. protons and neutrons added
  5. 16. emission spectra
  6. 18. same number of protons, different number of neutrons
  7. 19. modern depiction of the atom
  8. 21. amount of energy that a proton/electron can have
  9. 23. length of sound waves
  10. 27. what an atom weighs
  11. 28. an object was split using ________
  12. 29. another word for orbit
Down
  1. 1. positive particle
  2. 2. electrons zoom around this
  3. 4. where electrons are
  4. 5. a particle with quantum light
  5. 6. makes up elements
  6. 8. zooms really fast in fun shapes around something
  7. 9. electromagnetic radiation
  8. 10. nuclear decay
  9. 11. used to do things
  10. 13. formed when electrons lose electrons
  11. 14. how electrons go around atoms
  12. 17. pattern of negative particles
  13. 20. radioactivity decay at a certain rate
  14. 22. radioactive decay
  15. 24. how many electrons surround the atom
  16. 25. another word for Quantum
  17. 26. an object was put back together by using ________