The activities of 131I and 123I used in thyroid scans are given in Table 32.1 to be

Question:

The activities of 131I and 123I used in thyroid scans are given in Table 32.1 to be 50 and 70 μCi, respectively. Find and compare the masses of 131I and 123I in such scans, given their respective half-lives are 8.04 d and 13.2 h. The masses are so small that the radioiodine is usually mixed with stable iodine as a carrier to ensure normal chemistry and distribution in the body?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...