If the half-life of a radioactive isotope is 5,000 years, how much of the radioactive isotope in a specimen will be left after 10,000 years?

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asked Sep 14, 2019 97.4k views

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Nicolae Natea · Answer 1 · 2019-09-17T22:56:41+0000

10,000÷5,000=2 which means the amount of radioactive isotope has reduced by half twice. so, 25% of the starting amount of radioactive isotope will be left.

If the half-life of a radioactive isotope is 5,000 years, how much of the radioactive isotope in a specimen will be left after 10,000 years?

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