Chemistry, 15.07.2019 01:30 Ackussinglake63

Radioactive isotope has a half-life of 1.2 billion years. as measured by the presence of the isotope and its stable decay product, a rock originally contained 10 grams of the radioactive isotope, and now contains 1.25 grams. approximately how many years old is the rock?

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Radioactive isotope has a half-life of 1.2 billion years. as measured by the presence of the isotope...

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