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Calculate how many half lives have passed in a rock containing one-eighth the original radioactive material and seven eighths of the of the daughter product?
Wiki User
∙ 12y ago
1/8 = (1/2)3 which is in the form (1/2)n where n is the number of half lives undergone.
Therefore the substance has passed three half lives
Wiki User
∙ 12y ago
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3 half-lives
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Succesive radioactive disintegrations in a radioactive series.
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used to determine the age of rocks and minerals by measuring the abundance of certain radioactive isotopes within them. This method relies on the fact that radioactive isotopes decay at a known rate over time. By measuring the ratio of parent isotopes to daughter isotopes, scientists can calculate how long it has been since the rock or mineral formed.
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The daughter isotope is the result of the radioactive disintegration of the parent isotope. For example radium is a product of the uranium disintegration.The two isotopes have different chemical (different atomic numbers, etc.), physical and nuclear properties.
