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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?

They damage cells by breaking down DNA Signup and view all the answers

What is the characteristic of beta particles?

They are fast and light Signup and view all the answers

In which elements does alpha-decay occur?

Very heavy elements Signup and view all the answers

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

They have no mass and no charge Signup and view all the answers

What is the primary purpose of diagnostic radiopharmaceuticals?

To be used in tracer quantities for diagnosis Signup and view all the answers

What is the main reason why radiopharmaceuticals should be sterile?

Because they are administered parenterally Signup and view all the answers

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

Severe anemia Signup and view all the answers

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

To enable the detection of radiations emitted by the pharmaceutical Signup and view all the answers

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

It should be safe and nontoxic for human administration Signup and view all the answers