Chapter 8, Problem 8.51P

Interpretation Introduction

Interpretation:

The negative ${\text{EA}}_1$ and the positive ${\text{EA}}_2$ of oxygen atom is to be explained. Also the other element with positive ${\text{EA}}_2$ is to be determined.

Concept introduction:

The electron affinity is the amount of energy required when an electron is added to the neutral isolated gaseous atom. It is represented by $\text{EA}$.

When the first electron is added to the neutral atom then the energy released is called the first electron affinity and it is denoted as ${\text{EA}}_1$. It has negative values.

When the second electron is added to the negatively charged anion then the energy is to be supplied and is known as the second electron affinity. It is denoted by ${\text{EA}}_2$. It has positive values.