Radioactivity; Activity and Half-life
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3. The half-life of iodine-131, an isotope used in the treatment of thyroid disorders, is 8.04 d.
(a) If a sample of iodine-131 contains 5.0 1016 nuclei, what is the activity of the sample? Express your answer in curies.
(b) If the half-life of iodine-131 were only one-fifth of its actual value, calculate the factor by which the activity of this sample would change.
(See attached file for full problem description)
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Solution Summary
The expert examines activity in Curie of a sample is calculated. The relation between activity and half-line is determined.
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Please see the attached file.
3. The half-life of iodine-131, an isotope used in the treatment of thyroid disorders, is 8.04 d.
(a) If a sample of iodine-131 contains 5.0 1016 nuclei, what is the activity of the sample? Express your answer in curies.
(b) If the half-life of iodine-131 were only one-fifth of its actual value, calculate the factor by which the activity of this sample would change.
For part A, I tried using the relationship T1/2 = ln2/λ and R = N0λ, but still couldn't ...
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