24 Am is used in many home smoke alarms. It has a decay half-life of 457 years. How long does it take for the americium in a smoke alarm to decay to 6.25% of its original mass? 1828 yrs 1426 yrs 1300 yrs 870 yrs

24 Am is used in many home smoke alarms. It has a decay half-life of 457 years. How long does it take for the americium in a smoke alarm to decay to 6.25% of its original mass? 1828 yrs 1426 yrs 1300 yrs 870 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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241 Am is used in many home smoke alarms. It has a decay half-life of 457 years. How long does it take for the americium in a smoke alarm to decay to
95
6.25% of its original mass?
O 1828 yrs
1426 yrs
O 1300 yrs
870 yrs

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