btaylor2615 btaylor2615

15-11-2022
Geography

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Potassium-40 is radioactive and decays into Argon-40. The half-life of Potassium-40 is 1.3 billion years. You measure the # of atoms of each isotope in a rock and find 250 atoms of Potassium-40 and 250 atoms of Argon-40. How old is this rock?

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