Question

QUESTION 13

What is radioactive iodine-131 used for medically?

A		Vitamin B12 abnormalities
B		Bone imaging
C		Blood volume determination
D		None of the above

QUESTION 16

The natural decay of uranium produces what radioactive, gaseous element?

A		Radon.
B		Krypton.
C		Xenon.
D		Argon.

QUESTION 19

To what does the ionizing power of a radioactive particle refer?

A		Its ability to be ionized
B		Its tendency to ionize spontaneously
C		Its ability to ionize another molecule
D		Its tendency to attract ions

QUESTION 22

When discussing radiation, what is the definition of “half-life?”

A		The time required for 1/2 of an original amount of isotope to undergo radioactive decay.
B		The time required to induce 1/2 of an original amount of isotope to undergo radioactive decay.
C		The time required for 1/2 of an original amount of isotope to undergo chemical decay.
D		The time required to induce 1/2 of an original amount of isotope to undergo chemical decay.