Introduction To Health Physics
Introduction To Health Physics
5th Edition
ISBN: 9780071835275
Author: Johnson, Thomas E. (thomas Edward), Cember, Herman.
Publisher: Mcgraw-hill Education,
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Chapter 4, Problem 4.19P

The mean concentration of potassium in crustal rocks is 27 g/kg. If 40 K constitutes 0.012% of potassium, what is the 40 K activity, in Bq and µCi , in 1 metric ton of rock?

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