Chapter 14, Problem 3KSP

Interpretation Introduction

Interpretation:

The remaining concentration of ${}^{126}I$ is to be determined.

Concept introduction:

The radioactive decay is the most important application of kinetics.

The expression for the first order reaction is as follows:

$A_t=A_0{e}^{-kt}$

Here, $t$ is the time, $k$ is rate constant, $e$ is the base of the natural logarithm, $A_0$ is the initial concentration, and $A_t$ is the concentration at time $t$.