Tc-99m is the most commonly used radioactive isotope in medicine. It is a gamma emitter and has a half-life of 6.00 hours. If a patient is given 30.0 micrograms of Tc-99, and assuming none is lost due to any other process than radioactive decay, what percentage of Tc-99m is left un-decayed in the patients body after 12 hours? a. 100% b. 50% c. 25% d. 12.5% e. 6.25% f. 3.13% g. 1.56%
Tc-99m is the most commonly used radioactive isotope in medicine. It is a gamma emitter and has a half-life of 6.00 hours. If a patient is given 30.0 micrograms of Tc-99, and assuming none is lost due to any other process than radioactive decay, what percentage of Tc-99m is left un-decayed in the patients body after 12 hours? a. 100% b. 50% c. 25% d. 12.5% e. 6.25% f. 3.13% g. 1.56%
General Chemistry - Standalone book (MindTap Course List)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter20: Nuclear Chemistry
Section: Chapter Questions
Problem 20.23QP
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Tc-99m is the most commonly used radioactive isotope in medicine. It is a gamma emitter and has a half-life of 6.00 hours. If a patient is given 30.0 micrograms of Tc-99, and assuming none is lost due to any other process than radioactive decay, what percentage of Tc-99m is left un-decayed in the patients body after 12 hours?
a. 100%
b. 50%
c. 25%
d. 12.5%
e. 6.25%
f. 3.13%
g. 1.56%
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