Hello, can someone please help me understand how to solve this half-life problem? Thank you.

"Iodine-123 is a radioisotope used to diagnose the function of the thyroid gland. It has a half-life of 13.3 hours. What fraction of a diagnostic dose of iodine-123 would be present in a patient 79.7 hours after it was administered."

answer

watching

233

views

For unlimited access to Homework Help, a Homework+ subscription is required.

Liked by yellowferret864 and 3 others

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

sapphireseal966Lv1

1 Jun 2021

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Join us on Discord

Chemistry Study Group

Join now

Related questions

Iodine-131 is a convenient radioisotope to monitor thyroid activity in humans. It is a beta emitter with a half-life of 8.02 days. The thyroid is the only gland in the body that uses iodine. A person undergoing a test of thyroid activity drinks a solution of NaI, in which only a small fraction of the iodide is radioactive. (a) Why is NaI a good choice for the source of iodine? (b) If a Geiger counter is placed near the person’s thyroid (which is near the neck) right after the sodium iodide solution is taken, what will the data look like as a function of time? (c) A normal thyroid will take up about 12% of the ingested iodide in a few hours. How long will it take for the radioactive iodide taken up and held by the thyroid to decay to 0.01% of the original amount?

mauvesquirrel65

Hello, can someone please help me understand how to solve half-life problems? For example, Technetium-99 has a half-life of 4 hours. A person is given a 3.0-ng dose. How many nanograms will be present in the person 24 hours later?

yellowferret864

Please answer these 4 multiple choice questions. Thank you!