Americium-241 is used in some smoke detectors it is an
Problem- Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years. How long will it take in years for 32.0% of an Am-241 sample to decay?
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problem- americium-241 is used in some smoke detectors it is an alpha emitter with a half-life of 432 years how long
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