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How many years does it take until original amount absorbed

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Reference no: EM131602159

Question: The half-life of radioactive strontium-90 is 29 years. In 1960, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 10% of the original amount absorbed remains?

Reference no: EM131602159

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