Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.77E
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Question
Transcribed Image Text:11. Cesium-137 has a half-life of 30 years. What percent of the radioactive cesium parent atoms will remain
after 90 years?
12. Lead-210 has a half-life of 22 years. What percent of radioactive lead atoms will remain after 90 years?
(round your answer)
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