Chapter 18, Problem 24E

Interpretation Introduction

Interpretation:

When $\text{160}\text{mg}$ of technetium $\text{-99}$ is administered for a medical diagnosis, the amount of nuclide that remains after $24$ hours is to be calculated.

Concept introduction:

For all the radioactive samples, the level of radioactivity decreases with time. For the activity of the sample, the amount of time that is required to reduce it by half is known as the half life. The half-life is represented by the symbol $t_{1/2}$.