First Order Half Life Video Lessons

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Problem: Iodine-131 is used to treat thyroid cancer. It decays by beta emission and has a half-life of 8.1 days.b. What is the activity (in Ci) of a 2.50 mg sample of the isotope?

FREE Expert Solution

To find the activity R using the equation :

Where: 

R = activity

N = number of nuclei = number of atoms

t1/2 = half-life


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Problem Details

Iodine-131 is used to treat thyroid cancer. It decays by beta emission and has a half-life of 8.1 days.

b. What is the activity (in Ci) of a 2.50 mg sample of the isotope?

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