Question

Asked Oct 24, 2019

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Iodine 131 is a radioactive material that decays according to the function *A(t)=A _{0}e^{-0.087(t) }where* A

- What is the decay rate of iodine 131?
- How much iodine 132 is left after 8 days?
- When will 70 grams of iodine 131 be left?
- What is the half-life of iodine 131?

Step 1

Refer to the question . we have been given the iodine 131 which is a radioactive material that decays according to the function *A(t)=A _{0}e^{-0.087(t) }*

Step 2

(1)…To find the decay rate of iodine 131 compare the provided equation with the radioactive decay equation and from there we can find the decay rate as 0.087

Step 3

(2)…

As we can find the amount of iodine 131 and not 132 because we have not given the information about 132 ...

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