Americium-241 is used in smoke detectors. If 15% of the americium-241 in a smoke detector decays in 101 years, what is the half-life of the isotope? O a. 4.3 x 102 yrs O b.1.6 x 10-3 yrs OC. 6.2 × 102 yrs O d. 3.4 x 102 yrs O e. 7.1 yrs

Americium-241 is used in smoke detectors. If 15% of the americium-241 in a smoke detector decays in 101 years, what is the half-life of the isotope? O a. 4.3 x 102 yrs O b.1.6 x 10-3 yrs OC. 6.2 × 102 yrs O d. 3.4 x 102 yrs O e. 7.1 yrs

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Americium-241 is used in smoke detectors. If 15% of the americium-241 in a smoke detector decays in 101 years, what is the half-life of the isotope?
Оа. 4.3 х 104 уrs
O b. 1.6 x 10-3 yrs
O C 6.2 x 102 yrs
O d. 3.4 x 102 yrs
О е. 7.1 yrs

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