Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 25 - 25.2 - Concept Check - Page 530: 2


Approximately 23,000 years old.

Work Step by Step

This amount represents four half lives ($1/2^{4}$=$\frac{1}{16}$). The half-life for 14C is 5730 years, and 4 times this is about 23,000 years.
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