Chapter 20, Problem 20.85QP

Interpretation Introduction

Interpretation:

The most abundant radioactive element exists on earth should be identified and explained.

Concept Introduction:

• Half-life period: The time required to reduce the half of its original value.
• This is denoted by: ${\text{t}}_{\raisebox{1ex}{$\text{1}$}\!\left/ \!\raisebox{-1ex}{$\text{2}$}\right.}$
• This term is popularly use in nuclear chemistry, to describe the stability &instability of atoms or radioactive decay.
• For determination of first order rate constant K in half –life period we use

  $\text{K=}\frac{\text{0}\text{.629}}{{\text{t}}_{\frac{\text{1}}{\text{2}}}}$ Equation.

• The half-life in first order does not depend upon the initial concentration.

To Determine: The most abundant radioactive element present in earth