1) The half-life of the radioactive isotope bismuth-214 is 19.7
minutes. How long will it take for the mass of a sample of
bismuth-214 to decay from 97.3 micrograms to 12.2 micrograms? _____
minutes
2) The half-life of the radioactive isotope thallium-201 is 72.9
hours. How long will it take for the mass of a sample of
thallium-201 to decay from 74.2 micrograms to 37.1 micrograms? ___
hours
1) The half-life of the radioactive isotope bismuth-214 is 19.7 minutes. How long will it take for the mass of a sample
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1) The half-life of the radioactive isotope bismuth-214 is 19.7 minutes. How long will it take for the mass of a sample
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