Chapter 5, Problem 5.43P

(a)

Interpretation Introduction

Interpretation:

First excited state electronic configuration of ${\text{Be}}^{\text{2+}}$ ion has to be written.

Concept Introduction:

Electrons of an atom are arranged in orbitals by the order of increasing energy.  This arrangement is known as electronic configuration of atom.  When the atoms or ion absorb electromagnetic radiation, one electron from the valence orbital is promoted to the higher energy orbitals.  When the electron is in higher energy state due to absorption of electromagnetic radiation, it is known as excited state.

(b)

Interpretation Introduction

Interpretation:

First excited state electronic configuration of ${\text{He}}^{\text{+}}$ ion has to be written.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

First excited state electronic configuration of ${\text{F}}^{-}$ ion has to be written.

Concept Introduction:

Refer part (a).

(d)

Interpretation Introduction

Interpretation:

First excited state electronic configuration of $\text{Li}$ has to be written.

Concept Introduction:

Refer part (a).