题目内容

Which of the following is a not a SPECT radioisotope:

A. Gallium-68
B. Indium-111
C. Iodine-123

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How does technetium-99m decay?

A. Electron capture
B. Isomeric transformation
C. Alpha decay

Molybdenum-99 is used as the parent radioisotope for which generator?

A. a) Gallium-68
B. b) Technetium-99m
C. c) Fluorine-18

Using a cyclotron, what radioisotope is produced from irradiating oxygen-18 water with protons?

A. a) Fluorine-18
B. b) Nitrogen-13
C. c) Carbon-11

Each element is defined by its Atomic Number (Z) and Mass Number (A). The Mass Number is:

A. a) The element’s number of protons.
B. b) The element’s number of neutrons.
C. c) The sum of the element’s number of protons and neutrons.

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