1. A fossil is found to have a 14C level of 87.0% compared to
living organisms....
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Chemistry
1. A fossil is found to have a 14C level of 87.0% compared toliving organisms. How old is the fossil?
(answer in years)
2.Iodine-131 is a radioactive isotope. After 3.00 days, 77.2% ofa sample of 131I remains. What is the half-life of 131I?
(answer in days)
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1 All the radiactive nucleii undergo first order reactions For a first order reaction rate constant k 2303 t x log Mo M Where Mo initial mass M Mass
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