review sheet for radiation and nuclear energy test

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review sheet for radiation and nuclear energy test
2011-01-19 20:18:42
review sheet radiation nuclear energy test

review sheet for radiation and nuclear energy test
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  1. what are atoms like hydrogen-1, hydrogen-2, hydrogen-3 called?
  2. what are some benefits of nuclear fission?
    electricity , conserves fossil fuels , and reduce air pollution
  3. what is the primary fuel for a nuclear fusion reactor?
    2 hydrogen atomic nuclei
  4. what is nuclear fusion?
    the splitting of atomic nuclei into pieces or fragments
  5. where does nuclear fusion occurs primarily?
    the sun
  6. which process, fission or fusion, produces the least amount of nuclear waste?
  7. what particles are found in the nucleus of an atom?
    protons and neutrons
  8. what is atomic number:?
    number of protons
  9. what is mass number?
    number of neutrons AND protons
  10. which type of radiation are x-rays similar to?
    gamma rays
  11. what is an alpha particle made up of?
    2 protons AND 2 neutrons
  12. which type of radiation will penetrate the farthest into a material?
    gamma rays
  13. which type of radiation has a negative charge?
  14. which type of radiation has no charge?
  15. what is the time needed for half of a radioactive sample to decay called?
  16. if the half-life of a radioactive material is 4 days, how much would remain after 16 days?
  17. where does most of the radiation come from that we are exposed to?
    background radiation/space and ground
  18. what type of radioactive decay occurs when the atomic number decreases by two>
    alpha decay
  19. what type of radioactive decay occurs when the atomic number increases by one?
    beta decay
  20. when radium(88 protons) ejects an alpha particle, the nucleus left behind has how many protons?
    86 protons
  21. if carbon (6 protons) ejects a beta particle, how many protons are in the nucleus left behind?
    7 protons
  22. how are the elements after uranium produced?
  23. what does "E" stand for in the equation E=mc2 ?
  24. what does the "m" stand for in the equation E=mc2?
  25. what does the "c" stand for in the equation E=mc2?
    speed of light
  26. what unit is energy measured in with einsteins equation?
  27. can a small amout of mass produce a lot of energy
  28. what does the Savannah RIver Site Do?
    produces tritium which , was used for nuclear weapons.
  29. what is an advantage and disadvantage of nuclear fission reactors?
    advantages: plentiful electricity, conserves fossil fuel, and reduces air pollution.

    disadvantages: storage of radioactive waste, risks of accidents, and danger of nuclear weapons
  30. what particle is 42He ?
    alpha particle
  31. what particle is 0-1O?
    beta particle
  32. what does the beta particle do to the atomic number?
    makes it go up
  33. which particles are the weakest to strongest , in order?
    alpha, beta, gamma
  34. what are isotopes?
    atoms of the same element but , have different numbers of neutrons.
  35. what is critical mass?
    the minimum mass needed for the material.