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a) Uranium-237 has a half-life of 6.75 days. What mass of an initial sample of 22.5g of uranium-237 would remain after 27 days? b) Write

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a) Uranium-237 has a half-life of 6.75 days. What mass of an initial sample of 22.5g of uranium-237 would remain after 27 days? b) Write the complete reaction for the alpha decay of 212 Fr 87 196 c) Write the complete reaction for the beta negative decay of Ir 77 [8 marks]

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