Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 5 - Section 5.4 - Half-Life of a Radioisotope - Questions and Problems - Page 151: 5.30a

Answer

After 32.5 days, 1 half-life is elapsed.

Work Step by Step

1. Use the half life value for $Ce-141$ as a conversion factor to calculate the amount of half lives after 32.5 days. number of half lives = $32.5 days \times\frac{1 half-life}{32.5 days} = 1$ half-life.
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