Chapter 7, Problem 62E

(a)

Interpretation Introduction

To determine: The combination of $n$ and $l$ that exists as real orbitals or does not exist: $1\text{s}$.

(b)

Interpretation Introduction

To determine: The combination of $n$ and $l$ that exists as real orbitals or does not exist: $2\text{p}$.

(c)

Interpretation Introduction

To determine: The combination of $n$ and $l$ that exists as real orbitals or does not exist: $4\text{s}$.

(d)

Interpretation Introduction

To determine: The combination of $n$ and $l$ that exists as real orbitals or does not exist: $2\text{d}$.