How much strontium-90 was present in the bone

Reference no: EM13173224

You have a sample of bone collected from Nevada and you find that it contains strontium-90 and exhibits an activity of 2.5 Bq. How much strontium-90 was present in the bone when the animal died 45 years ago?(The half-life of 90Sr is 29 years.)

Reference no: EM13173224

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