Chapter 5.5, Problem 5.8E

(a)

Interpretation Introduction

Interpretation:

The reason for inappropriate subshell designation $\text{3f}$ has to be given.

Concept Introduction:

A subshell is one or more atomic orbitals with same n and l quantum numbers.  The value of l is an integer that ranges from zero upto to $\text{n-1}$.

    $\begin{array}{l}\text{l value}\text{0}\text{1}\text{2}\text{3}\\ \text{Subshell}\text{s}\text{p}\text{d}\text{f}\text{.}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The reason for incorrect quantum numbers has to be given.

Concept Introduction:

Refer to part (a)