Chapter 21, Problem 21.26CP

(a).

Interpretation Introduction

To determine:

identify element with configuration[Ar] 3d⁷4S²

(b).

Interpretation Introduction

To determine:

identify element with configuration $\left[\text{Ar}\right]{\text{ 3d}}^{\text{5}}{\text{4s}}^{\text{1}}$

(c).

Interpretation Introduction

To determine:

identify element with configuration $\left[\text{Kr}\right]{\text{ 4d}}^{\text{2}}{\text{5S}}^{\text{2}}$

(d).

Interpretation Introduction

To determine:

identify element with configuration $\left[\text{Xe}\right]{\text{4f}}^{\text{3}}{\text{6S}}^{\text{2}}$