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1. Co decays with a half-life of 5.27 years to produce 2Ni. (a) Calculate the fraction of a sample of the 29Co isotope that will remain after 15 years. (b) How long does it take for a sample of 29Co to disintegrate to the extent that only 2.0% of the original amount remains?

1. Co decays with a half-life of 5.27 years to produce 2Ni. (a) Calculate the fraction of a sample of the 29Co isotope that will remain after 15 years. (b) How long does it take for a sample of 29Co to disintegrate to the extent that only 2.0% of the original amount remains?

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60 60 1. Co decays with a half-life of 5.27 years to produce Ni. (a) Calculate the fraction of a sample of the 9Co isotope that will remain after 15 years. (b) How long does it take for a sample of 29Co to disintegrate to the extent that only 2.0% of the original amount remains?
Transcribed Image Text:60 60 1. Co decays with a half-life of 5.27 years to produce Ni. (a) Calculate the fraction of a sample of the 9Co isotope that will remain after 15 years. (b) How long does it take for a sample of 29Co to disintegrate to the extent that only 2.0% of the original amount remains?
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