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Use the radioactive decay curves, Figure 10.22, on page 179, to answer. If 12.5% of parent radioactive atoms remain in a rock, and the half-life is 50 million years; the rock is

Use the radioactive decay curves, Figure 10.22, on page 179, to answer. If 12.5% of parent radioactive atoms remain in a rock, and the half-life is 50 million years; the rock is

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Parent atoms remaining 100 94 atoms 87 atoms 80 75 atoms 60 50 atoms 40 25 atoms 13 atoms 6 atoms 1 3 4 Number of half-lives (Elapsed time) A Figure 10.22 Idealized radioactive decay curves. LO 20 Number of atoms (percent)
Transcribed Image Text:Parent atoms remaining 100 94 atoms 87 atoms 80 75 atoms 60 50 atoms 40 25 atoms 13 atoms 6 atoms 1 3 4 Number of half-lives (Elapsed time) A Figure 10.22 Idealized radioactive decay curves. LO 20 Number of atoms (percent)
Use the radioactive decay curves, Figure 10.22, on page 179, to answer. If 12.5% of parent radioactive atoms remain in a rock, and the half-life is 50 million years; the rock is O 150 million years old. O 50 million years old O 12.5 million years old. O 100 million years old.
Transcribed Image Text:Use the radioactive decay curves, Figure 10.22, on page 179, to answer. If 12.5% of parent radioactive atoms remain in a rock, and the half-life is 50 million years; the rock is O 150 million years old. O 50 million years old O 12.5 million years old. O 100 million years old.
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