Nuclear Vocab

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Across
  1. 2. above element symbols
  2. 5. positive charge
  3. 7. two or more species of atoms
  4. 9. negative charge
  5. 10. atoms splitting into smaller nuclei
  6. 12. reaction in the atomic nucleus
  7. 13. electricity by using heat from nuclear fusion.
Down
  1. 1. neutral charge
  2. 3. radioactive isotope
  3. 4. neutral charge
  4. 6. time it takes for radioactive isotope to decay
  5. 8. positively charged
  6. 11. below element symbols