One of the hazards of nuclear explosions is the generation of 90 Sr and its subsequent incorporation
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One of the hazards of nuclear explosions is the generation of 90Sr and its subsequent incorporation in place of calcium in bones. This nuclide emits β rays of energy 0.55 MeV, and has a half-life of 28.1 y. Suppose 1.00 µg was absorbed by a newly born child. How much will remain after
(a) 18 y,
(b) 70 y if none is lost metabolically?
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Solution a The initial amount of 90Sr 100 107 g while the mass of calcium in the bone is 100 ...View the full answer
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