Chapter 5, Problem 66A

Interpretation Introduction

Interpretation:

The Energy sublevels in each of the hydrogen atoms and the first three energy levels needs to be determined.

Concept introduction:

Energy levels are present at the fixed distances from the nucleus of an atom where electrons may present.

Explanation of Solution

Energy levels are present at the fixed distances from the nucleus of an atom where electrons may present

First energy level is $s$

Second energy level, $s$ and $p$

Third energy level, $s$, $p$, and $d$.

Energy level $1$ has one sub level, energy level $2$ has two sub levels, energy level $3$ has three sub levels.