Solution Found!

Solved: Iodine-131 is often used in nuclear medicine to obtain images of the thyroid. If

Chapter 17, Problem 70P

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

Iodine-131 is often used in nuclear medicine to obtain images of the thyroid. If you start with \(4.0 \times 10^{10}\) I-131 atoms, how many are left after approximately 1 month? I-131 has a half-life of 8.0 days.

Questions & Answers

QUESTION:

Iodine-131 is often used in nuclear medicine to obtain images of the thyroid. If you start with \(4.0 \times 10^{10}\) I-131 atoms, how many are left after approximately 1 month? I-131 has a half-life of 8.0 days.

ANSWER:

Answer :

 A half-life of 8 days means that every 8 days the half of the amount of I-131 decay...

So if you start with 4.0 × 10^10  atoms and you consider 32 days in a month (question says "approximately") your amount of atoms goes through 4 half-lives.

Then

4.0 × 1010/2 =5.43*1011

Add to cart


Study Tools You Might Need

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back