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Chemistry, 20.12.2019 06:31, bryan12376
One of the hazards of nuclear explosions is the generation of 90sr andits subsequent incorporation in place of calcium in bones. this nuclide emitsβrays of energy 0.55 mev, and has a half-life of 28.1 y. suppose 1.00 μg wasabsorbed by a newly born child. how much will remain after (a) 18 y, (b) 70 yif none is lost metabolically?
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