Quiz 3 Nuclear Radiation

Karen Timberlake

Answer the questions below and then click "submit" to send your answers.

  1. The beta particle consists of

    2. Your answer:
    high-energy rays
    1 neutron
    2 neutrons and 2 protons
    1 electron

  2. The nucleus of an atom of radioactive I-131 used in thyroid imaging contains

    3. Your answer:
    53 protons and 75 neutrons
    53 protons and 78 neutrons
    53 electrons and 78 neutrons
    53 neutrons and 78 protons

  3. What is the product of the alpha decay of Rn-220?

    4. Your answer:
    Po-216
    Rn-220
    Rn-216
    Ra-224

  4. What particle is missing in the following bombardment reaction? Al-27 + ? = 1n + P-30

    5. Your answer:
    neutron
    beta
    proton
    alpha

  5. What particle is released when Ga-75 decays to Ge-75?

    6. Your answer:
    neutron
    beta
    gamma
    alpha

  6. What other product occurs when Ac-222 releases an alpha particle?

    7. Your answer:
    Db-218
    Ra-218
    Fr-218
    Ac-218

  7. When an alpha particle is released in nuclear decay, the mass number of the nucleus undergoing decay

    8. Your answer:
    stays the same
    Increases by 4
    decreases by 4
    decreases by 2

  8. The radioisotopes used for diagnosis in nuclear medicine

    9. Your answer:
    they have short half lives.
    they travel rapidly through tissue.
    are usually gamma emitters.
    all of the above.

  9. Iodine-131 has a half-life of 8 days. How many grams of I-131 in a 4.0-g sample remain after 24 days?

    10. Your answer:
    2.0 g
    1.0 g
    0.50g
    0.0 g

  10. Phosphorus-32 has a half-life of 14 days. How long will it take for the P-32 sample to decay to one-fourth of its original level?

    11. Your answer:
    7 days
    14 days
    28 days
    42 days

  11. In nuclear fission,

    12. Your answer:
    a large amount of energy is released.
    large nuclei split into smaller nuclei.
    small nuclei combine to form larger nuclei.
    Answers 1 and 2 are correct.

  12. Lab coats and gloves provide shielding from

    13. Your answer:
    alpha radiation
    alpha and beta radiation
    alpha, beta, and gamma radiation
    gamm radiation

  13. The reaction of H-3 and H-2 to form He-4 and a neutron is an example of

    14. Your answer:
    a fission reaction
    a fusion reaction
    both fission and fusion reactions
    neither a fission or fusion reaction

  14. A vial contains iodine-131 with an activity of 1.0 mCi/mL. If the radiation tech is to use 4 mCi of I-131 in an "atomic cocktail" for thyroid function, what volume of the I-131 is required?

    15. Your answer:
    1.0 mL
    2.0 mL
    3.0 mL
    4.0 mL

  15. An 80-mg sample of technetium-99m is used for a diagnostic test. If Tc-99m has a half-life of 6.0 hr, who much of the Tc-99m sample remains radioactive after 24 hours?

    16. Your answer:
    40 g
    20 g
    10 g
    5 g

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