
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Geologists unearth a sample of zircon that appears to be a closed system. They find 0.758 microgram of 206Pb for 1.000 microgram of 238U present. Approximately how old is the sample?
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