Chapter 2, Problem 2A.12E

(a)

Interpretation Introduction

Interpretation:

The ${\text{M}}^{2+}$ ion that is expected to have electronic configuration of $\left[\text{Ar}\right]{\text{3d}}^4$ has to be predicted.

Concept Introduction:

The convention followed to remove or add electrons is electrons of largest principal quantum number are lost first. In case of subshells of the same $\text{n}$ value, electrons are lost from the subshell with highest $\text{l}$ value. In case of d-block elements, the $\text{ns}$ electrons are removed prior to $\left(\text{n}-1\right)\text{d}$ electrons.

(b)

Interpretation Introduction

Interpretation:

The ${\text{M}}^{2+}$ ion that is expected to have electronic configuration of $\left[\text{Kr}\right]{\text{4d}}^9$ has to be predicted.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The ${\text{M}}^{2+}$ ion that is expected to have electronic configuration of $\left[\text{Ar}\right]{\text{3d}}^{10}$ has to be predicted.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

The ${\text{M}}^{2+}$ ion that is expected to have electronic configuration of $\left[\text{Xe}\right]{\text{4f}}^{14}{\text{5d}}^{10}5{\text{s}}^{\text{2}}$ has to be predicted.

Concept Introduction:

Refer to part (a).