Technetium-99m (a "metastable" variety of 9943Tc) is a radioactive isotope commonly used in medical tracing. It has a ha

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answerhappygod
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Technetium-99m (a "metastable" variety of 9943Tc) is a radioactive isotope commonly used in medical tracing. It has a ha

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Technetium-99m (a "metastable" variety
of 9943Tc) is a radioactive isotope
commonly used in medical tracing. It has a half-life of 6.05
h. Suppose a sample of a drug containing technetium-99m
originally has an activity
of 1.40 ✕ 104 Bq when the drug
is prepared. What is its activity (in
Bq) 2.63 h later?
Bq
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