Chapter 8, Problem 8.57QP

(a)

Interpretation Introduction

Interpretation:

Electron affinity and its properties should be explained.

Concept Introduction:

The electron affinity is the amount of energy is released to accept an electron from an isolated atom to form a monovalent gaseous anion.

            ${\mathrm{Cl}}_{(g)}+e^{-}\to {\mathrm{Cl}}^{-}{}_{(g)}+349kJ/mol$

To explain: electron affinity.

(b)

Interpretation Introduction

Interpretation:

Electron affinity and its properties should be explained.

Concept introduction:

The electron affinity is the amount of energy is released to accept an electron from an isolated atom to form a monovalent gaseous anion.

  ${\mathrm{Cl}}_{(g)}+e^{-}\to {\mathrm{Cl}}^{-}{}_{(g)}+349kJ/mol$

To explain: why electron affinity measures in gaseous state.

(c)

Interpretation Introduction

Interpretation:

Electron affinity and its properties should be explained.

Concept Introduction:

The electron affinity is the amount of energy is released to accept an electron from an isolated atom to form a monovalent gaseous anion.

  ${\mathrm{Cl}}_{(g)}+e^{-}\to {\mathrm{Cl}}^{-}{}_{(g)}+349kJ/mol$

To explain: about the positive or negative value of electron affinity