Nuclear Chemistry

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Across
  1. 2. element formed when iodine undergoes beta decay
  2. 5. energy released during decay; no charge or mass
  3. 6. what is the mass number of an alpha particle?
  4. 7. element formed when uranium undergoes alpha decay
  5. 8. nuclei change in order to become more ________
  6. 11. an isotope of this element is used to date once-living things
  7. 15. an alpha particle is really a ______ nucleus
  8. 18. wearable badge that tracks radiation exposure
  9. 21. when a nucleus splits into smaller ones
  10. 22. in the nucleus, protons ______ each other
Down
  1. 1. metal that can stop gamma rays
  2. 3. instability has to do with the differences between the number of protons and ___
  3. 4. the time it takes for half of a sample to decay
  4. 9. an alpha particle has how many protons?
  5. 10. most common cancer caused by radiation
  6. 12. particle that has a mass of 4 amu
  7. 13. particle with a negative charge
  8. 14. element formed when carbon undergoes beta decay
  9. 16. in beta decay, the atomic number _____ by one
  10. 17. an instrument used to detect radiation
  11. 19. two smaller nuclei combine to form one larger nucleus
  12. 20. half-life is the amount of ___ it takes for a sample to decay