22. The half-life of radium-226 is 1620 years. a) If the current mass of a sample is 100 grams, what was the mass 200 years ago? b) How long will it take for the sample to be reduced by 75%
22. The half-life of radium-226 is 1620 years. a) If the current mass of a sample is 100 grams, what was the mass 200 years ago? b) How long will it take for the sample to be reduced by 75%
Chapter6: Exponential And Logarithmic Functions
Section6.7: Exponential And Logarithmic Models
Problem 15TI: Cesium-137 has a half-life of about 30 years. If we begin with 200 mg of cesium-137, will it take...
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![22. The half-life of radium-226 is 1620 years.
a) If the current mass of a sample is 100 grams, what wass the mass 200 years ago?
b) How long will it take for the sample to be reduced by 75%%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F940abd30-9750-4276-b204-3a6e9dc1be6b%2Fdbc8a872-b991-401d-a0d5-979a9ebfcf9f%2Fowqoo1q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:22. The half-life of radium-226 is 1620 years.
a) If the current mass of a sample is 100 grams, what wass the mass 200 years ago?
b) How long will it take for the sample to be reduced by 75%%
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