Physics: Nuclear and Other Radiation

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Across
  1. 3. held together by gluons
  2. 6. Nuclei and electrons make up ____.
  3. 9. smaller than atoms
  4. 11. the total number of positive charge and negative charge
  5. 15. "radios" and astronomical events
  6. 17. Subatomic particle with a positive electric charge
  7. 19. Volt energy unit for atoms and visible light
  8. 20. generic name for electrons and their relatives mu and tau, and the associated neutrinos
  9. 21. light and produce the electrical force
Down
  1. 1. Quarks are held together by ___.
  2. 2. high energy EMR
  3. 4. make up DNA
  4. 5. average energy
  5. 7. Neutrons and Protons make up the ___.
  6. 8. pass through many materials opaque to light
  7. 10. number/elements
  8. 12. cartoon character JIMMY___.
  9. 13. sound/ electromagnetic
  10. 14. Other combinations of Quarks make up
  11. 16. lighter than quarks and nuclei
  12. 18. My Physics professor calls himself?