AxxelWulf5864 AxxelWulf5864

19-12-2022
Chemistry

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strontium-90 is a radioactive isotope that is formed in nuclear explosions. the half-life of strontium-90 is 28 years. if a soil sample contains 45 pci of strontium-90 in 2000, what will be the activity of the 90sr in this soil sample in 2084?

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