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40K isotope of potassium has a half life of 1.37×109 years and decays to an isotope of argon which is stable. In a particular sample of moon rock, the ratio of potassium atoms to argon atoms was found to be 1:7. The age of the rock, assuming that originally there was no argon present, is |
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Answer» 40K isotope of potassium has a half life of 1.37×109 years and decays to an isotope of argon which is stable. In a particular sample of moon rock, the ratio of potassium atoms to argon atoms was found to be 1:7. The age of the rock, assuming that originally there was no argon present, is |
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