chapter 10 Isaac Sheets

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Across
  1. 3. alpha radiation carries a ______ charge
  2. 6. unstable atomic nuclei are
  3. 8. what Results from radioactive decay, which is the process in which unstable atomic nuclei transform and emit radiation.
  4. 9. gamma radiation carries __ charge
  5. 10. a natural form of radiation up in the sky is the ___
  6. 11. the 2 types of cosmic rays are high frequency and high ______ particles
Down
  1. 1. critical mass is a mass large enough to sustain fission
  2. 2. beta radiation carries a ______ charge
  3. 4. what famous scientist discover the e=mc squared formula
  4. 5. A neutron hitting a U-235 nucleus may cause it to stretch and ___ apart.
  5. 7. most radiation we encounter is ______background