Chapter 20, Problem 101AP

Interpretation Introduction

Interpretation:

The rem dose received by the patient is to be calculated.

Concept introduction:

The rate of decay for a particular isotope is given by the first-order rate law as:

$\text{Rate = }k\text{N}$

Here, $k$ is the rate constant for the radioactive decay and $\text{N}$ is the number of atoms in the sample.

Nearly all the radioactive decay is of the first order and its rate constant is given as:

$k\text{ = }\frac{0.693}{t_{1/2}}$

Here, $t_{1/2}$ is the half-life of the radioactive substance.

1 curie is defined as $3.7\times {\text{ 10}}^{\text{10}}$ disintegration occurring per second.