A sample of ore containing radioactive strontium9038sr has
A sample of ore containing radioactive strontium9038Sr has an activity of 7.6 x 105 Bq. The atomic mass of strontium is89.908 u, and its half-life is 28.5 yr. How many grams of strontiumare in the sample?
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a sample of ore containing radioactive strontium9038sr has an activity of 76 x 105 bq the atomic mass of strontium
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