Chapter 14, Problem 14.91PAE

Interpretation Introduction

Interpretation:

Activity of sample after 30 min in a sample containing only 53 Fe

Concept introduction: Activity or the amount of substance remaining after a particular period of time can be determined with help of half-life as follows:

${\text{N / N}}_{\text{0}}\text{= }{\left(\text{1/2}\right)}^{\text{t /t h}}$

Where, N is Activity of sample after time t

N₀ is initial activity

T_h is half life

Interpretation Introduction

Interpretation:

Activity of sample after 30 min in a sample containing 50% of each isotope should be identified.

Concept introduction: Activity or the amount of substance remaining after a particular period of time can be determined with help of half life as follows:

${\text{N / N}}_{\text{0}}\text{= }{\left(\text{1/2}\right)}^{\text{t /t h}}$

Where, N is Activity of sample after time t

N₀ is initial activity

T_h is half life