1311 is an isotope of lodine that decays to an isotope of

Last updated: 6/24/2023

1311 is an isotope of lodine that decays to an isotope of Xenon with a half life of 8 days A small amount of a serum labelled with 131 is injected into the blood of a person The activity of the amount of 131 linjected was 2 4 x 105Becquerel Bq It is known that the injected serum will get distributed uniformly in the blood stream in less than half an hour After 11 5 hours 2 5 ml of blood is drawn from the person s body and gives an activity of 115 Bq The total volume of blood in the person s body in liters is approximately you may use et 1 x for x 1 and In 2 0 7