Nuclear Chemistry Review

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Across
  1. 4. A series of fission reactions in which neutrons released cause further reactions.
  2. 6. The energy required to hold the protons and neutrons together in the nucleus.
  3. 10. A particle consisting of two protons and two neutrons emitted from a nucleus.
  4. 11. An unstable isotope that undergoes radioactive decay.
  5. 13. The time it takes an isotope to decay to half of its original value.
  6. 14. The splitting of a heavy nucleus into smaller nuclei releasing large amounts of energy.
  7. 15. An instrument used to detect and measure radiation.
Down
  1. 1. The original radioactive nucleus before decay.
  2. 2. A high-speed electron or positron emitted during nuclear decay.
  3. 3. Atoms of the same element with different numbers of neutrons.
  4. 5. High-energy electromagnetic radiation released from an excited nucleus.
  5. 7. The stable or unstable nucleus that remains after a radioactive decay.
  6. 8. The process where two light nuclei combine to form a heavier nucleus releasing energy.
  7. 9. The difference between the mass of a nucleus and the sum of the masses of its protons and neutrons.
  8. 12. The spontaneous emission of radiation from an unstable nucleus.