Geography, 10.06.2021 18:10 emilyplays474
Calculate the amount, in grams, of an original 300-gram sample of radioactive isotope Potassium-40 remaining after 3.9 billion years if its half life equals 1.3 x 10^9 years.
Answers: 3
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Calculate the amount, in grams, of an original 300-gram sample of radioactive isotope Potassium-40 r...
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