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Giancoli's Physics: Principles with Applications, 7th Edition
30
Nuclear Physics and Radioactivity
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30-1: Nuclear Properties
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30-3 to 30-7: Radioactive Decay
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30-8 to 30-11: Half-Life, Decay Rates, Decay Series, Dating
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 43
Q

The iodine isotope 53131I{^{131}_{53}\textrm{I}} is used in hospitals for diagnosis of thyroid function. If 782  μg782 \; \mu\textrm{g} are ingested by a patient, determine the activity

  1. immediately,
  2. 1.50 h later when the thyroid is being tested, and
  3. 3.0 months later.
Use Appendix B.
A
  1. 3.60×1012 Bq3.60 \times 10^{12} \textrm{ Bq}
  2. 3.58×1012 Bq3.58 \times 10^{12} \textrm{ Bq}
  3. 1.33×109 Bq1.33 \times 10^9 \textrm{ Bq}
Giancoli 7th Edition, Chapter 30, Problem 43 solution video poster
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COMMENTS
By cparish on Thu, 3/14/2024 - 8:45 PM

Where did the 130.906 grams/mole come from? In a different problem (#48), you use the conversion 32 grams/mole...

By cparish on Thu, 3/14/2024 - 8:49 PM

Never mind. I remembered it is due to the molecular weight of the isotopes... Apologies.

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