Chapter 32 Powerpoint

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Chapter 32 Powerpoint

  1. 1. Chapter 32 Ionizing Radiation, Nuclear Energy, and Elementary Particles
  2. 2. 32.2 Induced Nuclear Reactions A nuclear reaction is said to occur whenever the incident nucleus, particle, or photon causes a change to occur in the target nucleus.
  3. 3. 32.2 Induced Nuclear Reactions Example 3 An Induced Nuclear Transmutation An alpha particle strikes an aluminum nucleus. As a result, an unknown nucleus and a neutron are produced.
  4. 4. 32.2 Induced Nuclear Reactions An induced nuclear reaction in which uranium is transmuted into plutonium.
  5. 5. 32.3 Nuclear Fission A slowly moving neutron causes the uranium nucleus to fission into barium, krypton, and three neutrons.
  6. 6. 32.3 Nuclear Fission A chain reaction
  7. 7. 32.3 Nuclear Fission In a controlled chain reaction, only one neutron, on average, causes another neutron to fission.
  8. 8. 32.4 Nuclear Reactors A nuclear reactor consists of fuel elements, control rods, and a moderator.
  9. 9. 32.4 Nuclear Reactors The moderator slows neutrons and the control rods absorb neutrons.
  10. 10. 32.5 Nuclear Fusion Two nuclei of very low mass can combine to generate energy. This process is called nuclear fusion.
  11. 11. 32.5 Nuclear Fusion

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