Chapter 2.6, Problem 2.26P

(a)

Interpretation Introduction

Interpretation:

The element which has electronic configuration as ${\text{1s}}^{\text{2}}{\text{2s}}^{\text{2}}{\text{2p}}^{\text{6}}{\text{3s}}^{\text{1}}$ has to be given.

(b)

Interpretation Introduction

Interpretation:

The element which has electronic configuration as ${\text{1s}}^{\text{2}}{\text{2s}}^{\text{2}}{\text{2p}}^{\text{6}}{\text{3s}}^{\text{2}}{\text{3p}}^{\text{2}}$ has to be given.