Radioactive Decay Process
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Radioactive Decay Process

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Questions and Answers

What is the process called when an unstable isotope undergoes changes to reach a stable state and emits radiation?

  • Atomic stabilization
  • Radioactive emission
  • Nuclear transformation
  • Radioactive decay (correct)

    • What is the composition of an alpha particle?

  • 2 protons and 2 neutrons (correct)
  • 1 proton and 1 neutron
  • 3 protons and 1 neutron
  • 1 proton and 2 neutrons

    • What is the range of alpha particles penetration in air?

  • 3 m and less
  • 5 cm and less (correct)
  • 50 cm and less
  • 10 cm and more

    • What is the effect of alpha particles on cells?

    <p>They damage cells by breaking down DNA</p> Signup and view all the answers

    What is the characteristic of beta particles?

    <p>They are fast and light</p> Signup and view all the answers

    In which elements does alpha-decay occur?

    <p>Very heavy elements</p> Signup and view all the answers

    What is the characteristic of gamma rays that allows them to have a high penetrating power?

    <p>They have no mass and no charge</p> Signup and view all the answers

    What is the primary purpose of diagnostic radiopharmaceuticals?

    <p>To be used in tracer quantities for diagnosis</p> Signup and view all the answers

    What is the main reason why radiopharmaceuticals should be sterile?

    <p>Because they are administered parenterally</p> Signup and view all the answers

    What is the somatic effect of radiation exposure that can appear after years of exposure?

    <p>Severe anemia</p> Signup and view all the answers

    What is the purpose of tagging a radionuclide to a pharmaceutical?

    <p>To enable the detection of radiations emitted by the pharmaceutical</p> Signup and view all the answers

    What is a characteristic of the pharmaceutical of choice for radiopharmaceuticals?

    <p>It should be safe and nontoxic for human administration</p> Signup and view all the answers

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