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