The I131 nuclide has a halflife of 8.0 days. If you originally have a 1.8kg sample,...
Homework Answers
Solution:
Half life time (t1/2) is related with total time (T) as,
T = n x t1/2
n = T / (t1/2)
n = 48 days / 8 days = 6
According to radioactivity equation:
N = No x (1/2)^n
Where, N = left amount
No = initial amount
Hence,
N = 1.8 kg x (1/2)^6
N = 1800 g x (1/64)
N = 28.125 g
Hence, the remained amount of I-131
= 28.125 g
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