Chemistry, 05.06.2021 01:10 ttrump03

A sample of a certain isotope has an initial activity of 40,000 cpm. After 24.8 days, the activity is 2500 cpm. What is the half life of the isotope?

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A sample of a certain isotope has an initial activity of 40,000 cpm. After 24.8 days, the activity i...

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