Nuclear Chemistry

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Across
  1. 3. when two small nuclei combine to form a larger nucleus creating a lot of energy
  2. 4. radiation that can only be stopped by lead
  3. 7. radiation that can be stopped with aluminum foil
  4. 8. an atom in nuclear chemistry
  5. 10. when an atom is unstable and decays
  6. 11. protons and neutrons
Down
  1. 1. when one atom turns into a different atom
  2. 2. the amount of time it takes for half of a sample to decay
  3. 5. that can be stopped by clothing
  4. 6. a positive electron
  5. 9. when one large nucleus splits into two smaller nuclei creating a lot of energy