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Given the fact that the lifetime of 14C, the radioactive isotope of carbon, is approximately 8267...

Given the fact that the lifetime of 14C, the radioactive isotope of carbon, is approximately 8267 years, calculate how much time would pass before only 81.1% of the initial amount of the 14C remains. (Note: the lifetime = half life/ln (2) = half life/0.6931. The half life of 14C is 5730 years.)

Decay Time (in years):

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Given the fact that the lifetime of 14C, the radioactive isotope of carbon, is approximately 8267 years, calculate how much time would pass before only 35% of the initial amount of the 14C remains. (Note: the lifetime = half life/ln (2) = half life/0.6931. The half life of 14C is 5730 years.)

Decay Time (in years):

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