Chapter 8, Problem 79E

(a)

Interpretation Introduction

To give: The more negative electron affinity from the pair: $\text{Na}$ or $\text{Rb}$.

(b)

Interpretation Introduction

To give: The more negative electron affinity from the pair: $\text{B}$ or $\text{S}$.

(c)

Interpretation Introduction

To give: The more negative electron affinity from the pair: $\text{C}$ or $\text{N}$.

(d)

Interpretation Introduction

To give: The more negative electron affinity from the pair: $\text{Li}$ or $\text{F}$.