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After the sudden release of radioactivity from theChernobyl nuclear reactor acci

ID: 2206800 • Letter: A

Question

After the sudden release of radioactivity from theChernobyl nuclear reactor accident in 1986, the radioactivity of milk in Poland rose to 2000 Bq/L due to iodine-131 present in the grass eaten by dairy cattle. Radioactive iodine, with a half-life 8.0 days, is particularly hazardous because the thyroid gland concentrates iodine. (a) What is the decay constant that characterizes the decay of 131^Iodine if it has a half-life of 8 days? (b) What is the storage time needed to decrease the 131^Iodine content of cheese produced from these cows

Explanation / Answer

=0.693/t1/2==>=0.693/8=0.0866

b)0

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