Chapter 16, Problem 16.47FU

Interpretation Introduction

Interpretation:

To find the number of days it will take until the activity of the Tl-201 in Simone’s body is one-eighth of the initial activity.

Concept introduction:

Radioactive decay equation:

  $\text{N}\left(\text{t}\right){\text{ = N}}_{\text{o}}\left(\frac{\text{1}}{2}\right){}^{\frac{\text{t}}{{\text{t}}_{\text{1/2}}}}$

Where No is the initial activity, N(t) is the activity at time t, and t_1/2is the half-life of the radioactive substance.