Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 30 - Nuclear Physics and Radioactivity - Misconceptual Questions: 13

Answer

Choice D.

Work Step by Step

Carbon-14 has a half-life of about 5730 years. After each half-life, another one-half of the remaining C-14 nuclei will decay. So, after 10 half-lives less than $\frac{1}{2^{10}}$, or less than a part in a thousand of the original C-14 remains. C-14 dating is not a useful technique for measuring time periods that are hundreds of thousands of years or longer.
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