Geography, 13.05.2021 02:00 Seventhhokage465
A parent isotope has a half-life of 1 million years. If a rock contained
20 mg of the parent isotope when it formed, how much parent isotope would be
left after 2 million years? Show your work.
hamda
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A parent isotope has a half-life of 1 million years. If a rock contained
20 mg of the parent isotop...
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