Chapter 12, Problem 21E

Interpretation Introduction

(a)

Interpretation:

The noble gas having identical configuration to cation ${\text{Li}}^{+}$ is to be stated.

Concept introduction:

Isoelectronic elements are those elements which are having the exactly same number of electrons. Isoelectronic species can also be expressed in terms of electronic configuration by equating their general electronic configuration of the outermost shell.

Interpretation Introduction

(b)

Interpretation:

The noble gas having identical configuration to cation ${\text{Al}}^{3+}$ is to be stated.

Concept introduction:

Isoelectronic elements are those elements which are having the exactly same number of electrons. Isoelectronic species can also be expressed in terms of electronic configuration by equating there general electronic configuration of the outermost shell.

Interpretation Introduction

(c)

Interpretation:

The noble gas having identical configuration to cation ${\text{Ca}}^{2+}$ is to be stated.

Concept introduction:

Isoelectronic elements are those elements which are having the exactly same number of electrons. Isoelectronic species can also be expressed in terms of electronic configuration by equating there general electronic configuration of the outermost shell.

Interpretation Introduction

(d)

Interpretation:

The noble gas having identical configuration to cation ${\text{Mg}}^{2+}$ is to be stated.

Concept introduction:

Isoelectronic elements are those elements which are having the exactly same number of electrons. Isoelectronic species can also be expressed in terms of electronic configuration by equating there general electronic configuration of the outermost shell.