Question: A patient with thyroid problems has radioactive iodine ( 123 53 I) deposited in his thyroid gland. If the 123 53 I has an initial

A patient with thyroid problems has radioactive iodine (¹²³₅₃I) deposited in his thyroid gland. If the ¹²³₅₃I has an initial activity of 2.5 MBq, what is its activity after 20 days?

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