Chapter 9, Problem 9.30UKC

(a)

Interpretation Introduction

Interpretation:

The balanced nuclear reaction for the beta emission of Sodium-24 has to be given.

Concept Introduction:

Beta emission reaction:

Beta particles are electrons (electrons with negative electric charge). Beta decay occurs when in a nucleus with too many protons or too many neutrons, one of the protons or neutrons is transformed into the other.

  ${{}_{\text{Z}}}^{\text{A}}\text{X}{\stackrel{}{\to }}_{\text{Z+1}}{}^{\text{A}}{\text{X+}}_{\text{-1}}{}^{\text{0}}\text{e}$

(b)

Interpretation Introduction

Interpretation:

The amount of samples remains after $\text{2}\text{.5}$ days has to be given.

Concept Introduction:

Half life:

The half life of a radioactive substance is a measure of time taken for a given amount of the substance to reduce as an effect of decay.

(c)

Interpretation Introduction

Interpretation:

The volume of sodium-24 administered has to be given.