Nuclear Energy

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Across
  1. 2. A particle with no charge
  2. 3. A form of energy with no mass
  3. 4. A positively charged particle in the nucleus
  4. 8. Helium nucleus with 2 protons and 2 neutrons
  5. 9. An atom of an element with a different amount of neutrons than the periodic table
  6. 10. The nucleus splits on another particle and releases energy
  7. 11. The radiation emitted from radioactive material
  8. 12. the time taken for the radioactivity of a specified isotope to fall to half its original value
  9. 14. Uses synthesis to form heavier nucleus and releases energy and it is found in stars
Down
  1. 1. The amount of protons in an atom
  2. 5. the self-sustaining fission reaction spread by neutrons which occurs in nuclear reactors and bombs
  3. 6. The total number of protons and neutrons
  4. 7. An electron emitted from the nucleus
  5. 13. The control center of an atom