The half-life of ^40K is 1.27 billion years (bY). It was determined that only 10.2% of the original ^40K remains in some of the earth's oldest rocks, what is the minimum age of the earth? a.) 9.2 bY b.) 4.2 bY c.) 3.6 bY d.) 2.1 bY (please show work)
The half-life of ^40K is 1.27 billion years (bY). It was determined that only 10.2% of the original ^40K remains in some of the earth's oldest rocks, what is the minimum age of the earth? a.) 9.2 bY b.) 4.2 bY c.) 3.6 bY d.) 2.1 bY (please show work)
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 10.85E
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The half-life of ^40K is 1.27 billion years (bY). It was determined that only 10.2% of the original ^40K remains in some of the earth's oldest rocks, what is the minimum age of the earth?
a.) 9.2 bY
b.) 4.2 bY
c.) 3.6 bY
d.) 2.1 bY
(please show work)
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