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Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How long ( in years) will it take a Co-60 source to decrease by 18% of its original activity? O 13 O 5265 O 1.51 0 14

Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How long ( in years) will it take a Co-60 source to decrease by 18% of its original activity? O 13 O 5265 O 1.51 0 14

Chemistry
Chemistry
9th Edition
ISBN:9781133611097
Author:Steven S. Zumdahl
Publisher:Steven S. Zumdahl
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 27E
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Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How long ( in years ) will it take a Co-60 source to decrease by 18% of its original activity? O 13 O 5265 O 1.51 O 14
Transcribed Image Text:Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How long ( in years ) will it take a Co-60 source to decrease by 18% of its original activity? O 13 O 5265 O 1.51 O 14
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