Nuclear Energy

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Across
  1. 2. the number used to organized elements on a periodic table
  2. 3. when two radioactive nuclei combine and result in energy
  3. 5. the amount of time it takes for half of the original element to decay
  4. 9. a neutron splits the nucleus of a radioactive atom
  5. 10. helium nucleus
  6. 13. an electron that is sent out of the nucleus
  7. 14. the average mass taken out of all possible isotopes of an atom
Down
  1. 1. energy that leaves the nucleus
  2. 4. when radiation is continuously being emitted
  3. 6. a particle with a neutral charge
  4. 7. a positively charged particle of an atom
  5. 8. the center of an atom
  6. 11. when two atoms have the same proton number but they differ in mass
  7. 12. when one action leads to another