Answer
Half life of the decay is about 7 minutes.
Work Step by Step
Observe the graph. Mass is reduced in half in about 7 minutes.
Chemistry: The Central Science (13th Edition)
by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.
Published by
Prentice Hall
ISBN 10:
0321910419
ISBN 13:
978-0-32191-041-7
Chapter 21 - Nuclear Chemistry - Exercises - Page 946: 21.6a
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