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Question: 

The iodine isotope ${^{131}_{53}\textrm{I}}$ is used in hospitals for diagnosis of thyroid function. If $782 \; \mu\textrm{g}$ 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.

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 
  1. $3.60 \times 10^{12} \textrm{ Bq}$
  2. $3.58 \times 10^{12} \textrm{ Bq}$
  3. $1.33 \times 10^9 \textrm{ Bq}$

Giancoli 7th Edition, Chapter 30, Problem 43

(2:40)

Chapter 30, Problem 43 is solved.

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