Chapter 9, Problem 9A.3AE

Interpretation Introduction

Interpretation:

The structure of a ${\text{P}}_2$ molecule has to be described in terms of valence-bond. The reason for more stability of ${\text{P}}_4$ molecule than ${\text{P}}_2$ molecule has to be stated.

Concept introduction:

In quantum mechanics, the wavefunction is given by $\psi$.  The wavefunction contains all the information about the state of the system.  The wavefunction is the function of the coordinates of particles and time.