We are RAD

123456789101112131415161718192021222324
Across
  1. 1. ______ radiation
  2. 7. where it all began
  3. 8. fem pioneer
  4. 10. when it began
  5. 12. don't show up on xray
  6. 14. Wilhelm _____
  7. 15. discovered uranium salts
  8. 16. first one ever
  9. 17. took one for the team in a major way
  10. 18. gave off a glow
  11. 20. environmental hazard
  12. 22. gives photoelectrons their "umph"
  13. 23. great contributor
  14. 24. good old 74
Down
  1. 2. ______ rays
  2. 3. how Xray was discovered
  3. 4. live
  4. 5. this happened to Rontgen's notes after he died
  5. 6. legacy unit of measurement
  6. 9. a formula to calculate measurability
  7. 11. higher energy
  8. 13. prize in physics the top honor
  9. 18. a type of tube used
  10. 19. X equals this
  11. 21. preceptor to fluoroscope