Radioactive iodine, 131I, with a half-life of 8.0252 d, is used in some forms of medical diagnostics.
Question:
(a) If the initial activity of a sample is 64.5 mCi, what is the mass of 131I in the sample?
(b) What will the activity be 4.5 d later?
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Step by Step Answer:
a The activity is related to the number of nuclei N and the time constant by R N The number ...View the full answer
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Related Book For 
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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