Answer
Choice B.
Work Step by Step
Radioactive decay is exponential. After each half-life, one-half of the remaining material decays. After two half-lives, we are down to one-quarter the original amount, etc.
Physics: Principles with Applications (7th Edition)
by Giancoli, Douglas C.
Published by
Pearson
ISBN 10:
0-32162-592-7
ISBN 13:
978-0-32162-592-2
Chapter 30 - Nuclear Physics and Radioactivity - Misconceptual Questions - Page 880: 5
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