Chemistry Unit 6 Vocabulary Review

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Across
  1. 4. The radiation of electrons
  2. 5. The atomic number of an alpha particle
  3. 10. The spontaneous emission of radiation
  4. 12. A particle with a mass of approximately 1 amu
  5. 17. The abbreviation is amu
  6. 19. For boron, its __ number is 5
  7. 20. Gamma radiation is measured as ___ loss.
  8. 21. Alpha radiation emits a __ atom.
  9. 22. Same element, different mass
  10. 23. ____ change the identity of the atoms.
Down
  1. 1. Carbon is 99% carbon-12. Dividing 99% by 100 gives you the _____ of carbon-12.
  2. 2. The mass number of a beta particle
  3. 3. For potassium-40, it's ___ number is 40
  4. 6. The average atomic mass of ___ is 79.904 amu.
  5. 7. Massless radiation
  6. 8. A particle with a mass of approximately 0.0005 amu
  7. 9. A positively charged particle
  8. 11. If thorium underwent alpha decay, it would become ___.
  9. 13. If chromium underwent beta decay, it would become ___ .
  10. 14. ____ rearrange the atoms.
  11. 15. Find the average atomic mass by adding the ____ of each isotope.
  12. 16. Rays of energy or particles
  13. 18. For lithium, 6.94 is the ___ average of its isotopes