Nuclear Energy

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Across
  1. 4. a series of events so related to each other that each one initiates the next.
  2. 9. the number of protons and neutrons
  3. 10. the atomic number
  4. 12. the amount of time it takes for one-half of the radioactive isotope to decay
  5. 13. an electron or positron that is thrown out from the nucleus of an atom during radioactive decay
  6. 14. Has a neutral charge
Down
  1. 1. The number of protons in a nucleus
  2. 2. a helium nucleus emitted by some radioactive substances.
  3. 3. is electromagnetic energy emitted by the nucleus
  4. 5. atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
  5. 6. a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.
  6. 7. Atoms with the same number of protons but different numbers of neutrons
  7. 8. the act of emitting radiation spontaneously
  8. 11. Inside an atom