Multiple Choice
Technetium-99m is used in medical diagnosis by injecting a solution and watch for the pattern of emissions. A 0.325 g sample was injected into a person, and the emission rate indicates that there are approximately 0.01016 grams of Tc-99 left. How much time has passed since the injection? Tc-99 has a half-life of 6 hours.
A) 24 hours
B) 30 hours
C) 36 hours
D) Not enough data.
Correct Answer:
Verified
Correct Answer:
Verified
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