Please help ! After 4.00 years, 2.000 g of a radioisotope remains from a sample that had an original mass of 4.00g. Calculate the half-life of this mystery radioisotope. How much of the radioisotope remains after 20.0 years? Show calcs and don't forget sig fig processes.
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Please help ! After 4.00 years, 2.000 g of a radioisotope remains from a sample that had an original...
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