Explain the activity in becquerels and curies

Reference no: EM13488242

A sample of material contains contains 20 mg of Iodine ^131. Calculate: A) The number of I ^131 atoms initially present. B) The activity in becquerels and curies. C) The number of atoms that will remain in 40 days. D) The number of atoms that will remain in 80.207 days. E) The time it will take for the activity to reach 0.001 curies.

Reference no: EM13488242

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