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Question: the physical halflife of 113m in indium isotope is 17...

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The physical half-life of (113m) In (indium isotope) is 1.7 hours. The initial (113m) In sample has 1.07 x 10^16 atoms and a mass of 2 \mug. Enough (113m) In must be obtained at 4 PM. Monday to provide 300 kBq at 1 P.M. Tuesday. How much (113m) In should be obtained?

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