Fission and fusion

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Fission and fusion

  1. 1. NuclearEnergy
  2. 2. Atomic mass And Atomic NumberAtomic number = number of protonsAtomic mass=number of neutrons + protons .
  3. 3. Mass Defect & Binding EnergyMass Defect : It is the loss of mass of a nucleus whilecreation of binding energy.
  4. 4. RadioactivityRadioactivity wasobserved by:HenryBecquerel.It is the disintegration ofnucleus.
  5. 5. Fission Nuclear fission in the process whereby a nucleus, with a high mass number, splits into 2 nuclei which have roughly equal smaller mass numbers.235 1 141 92 1 92 U + 0n 56 Ba + 36Kr + 30 n During nuclear fission, neutrons are released.
  6. 6. The Fission ProcessA neutron travels at high speed towards a uranium-235nucleus. 1 235 0 n 92 U
  7. 7. The Fission ProcessThe neutron strikes the nucleus which then captures theneutron. 1 235 0 n 92 U
  8. 8. The Fission ProcessThe nucleus changes from being uranium-235 touranium-236 as it has captured a neutron. 236 92 U
  9. 9. The Fission ProcessThe uranium-236 nucleus formed is very unstable.It transforms into an elongated shape for a short time.
  10. 10. The Fission ProcessThe uranium-236 nucleus formed is very unstable.It transforms into an elongated shape for a short time.
  11. 11. The Fission ProcessIt then splits into 2 fission fragments and releasesneutrons. 1 0 n 141 56 Ba 1 0 n 92 36 Kr 1 0 n
  12. 12. The Fission ProcessIt then splits into 2 fission fragments and releasesneutrons. 1 0 n 141 56 Ba 1 0 n 92 36 Kr 1 0 n
  13. 13. The Fission ProcessIt then splits into 2 fission fragments and releasesneutrons. 1 0 n 141 56 Ba 1 0 n 92 36 Kr 1 0 n
  14. 14. Chain ReactionNow three secondary neutrons are produced.Now each of these willcreate three more and so on.Due to this chain reaction which happensvery quickky a lot of heat energy is produced.
  15. 15. Nuclear Reactor
  16. 16. Indian Nuclear ProgrammeNarora(U.P) Kalpakkam(Tamil Nadu)
  17. 17. The Fusion Process21H31H
  18. 18. The Fusion Process21H31H
  19. 19. The Fusion Process21H31H
  20. 20. The Fusion Process
  21. 21. The Fusion Process
  22. 22. The Fusion Process
  23. 23. The Fusion Process 1 0 n42 He EN ER GY
  24. 24. The Fusion Process 1 0 n 4 2 He EN ER GY
  25. 25. The Fusion Process 1 0 n 4 2 He EN ER GY
  26. 26. Nuclear FusionIn nuclear fusion, two nuclei combine to produce a singlenucleus with a higher mass number.Fusion reactions do not occur naturally on ourplanet but are the principal type of reactionfound in starsThe large masses, densities, and hightemperatures of stars provide the initialenergies needed to fuel fusion reactionsThe sun fuses hydrogen atoms to produce helium and vast amounts of energy. 2 3 4 1 1 H + 1H 2 He +0n +Energy
  27. 27. Nuclear HolocaustIt is the large scale destruction and devastationcaused due to usage of nuclear weapons.
  28. 28. Nuclear MedicineIt is a branch or specialty of medicine and medical imagingthat uses radionuclides and relies on the process ofradioactive decay in the diagnosis and treatment of disease.
  29. 29. Some Of The Nuclear Bombs UsedFat Man Little Boy
  30. 30. Destruction Caused byAtomic Bombs
  31. 31. Quiz• Fission is the process that _________ atomic nuclei. A. Combines B. Burns up C. Stores D. Splits
  32. 32. Quiz• Mass may be converted into energy. A. True B. False
  33. 33. Quiz• Name a nuclear reaction that occurs within the sun:
  34. 34. Quiz• Name the material used as a coolent in a nuclear reactor-• 1)Ice• 2)Liquid Sodium• 3)Borone• 4)Cadmium

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