Nuclear Energy

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Across
  1. 2. Fission- atoms are split apart, which releases energy
  2. 5. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
  3. 7. Radiation- It can be used to treat cancer
  4. 9. positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
  5. 10. particle- a fast-moving electron emitted by radioactive decay of substances.
  6. 12. each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei,
  7. 13. reaction- the self-sustaining fission reaction spread by neutrons which occurs in nuclear reactors and bombs.
Down
  1. 1. radioactive substances, or the radiation emitted by these.
  2. 3. Particle- composite particles consisting of two protons and two neutrons tightly bound together
  3. 4. Fusion- two light nuclei merge to form a single heavier nucleus.
  4. 6. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
  5. 8. Number- the total number of protons and neutrons in a nucleus
  6. 11. number- the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table
  7. 14. life- Amount of time something takes to decay