Multiple Choice
Technetium-99m is used in a variety of medical applications.It has a half-life of 6 hours.If 100.0 mg of technetium-99m is prepared at 6:00 AM, how many milligrams are still active when it is needed for diagnostic testing at 6:00 PM?
A) 100.0 mg
B) 50.0 mg
C) 25.0 mg
D) 10.0 mg
E) 5.00 mg
Correct Answer:
Verified
Correct Answer:
Verified
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