Chapter 19, Problem 38E

Interpretation Introduction

Interpretation: Time taken by ${}^{131}\text{I}$ to decrease to $1/100$ of the original amount if some one consumes a sample of ${\text{Na}}^{\text{131}}\text{I}$ is to be stated.

Concept introduction: A process through which a unstable nuclide looses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

Iodine-$131$ is used in the diagnosis and treatment of thyroid disease and has a half-life of $8$ days.

To determine: The time taken by ${}^{131}\text{I}$ to decrease to $1/100$ of the original amount.