Chapter 6, Problem 6.63QP

Interpretation Introduction

Interpretation:

Failure of preparing stable ${\text{CF}}_{\text{5}}$, ${\text{LiO}}_{\text{2}}$, ${\text{CsCl}}_{\text{2}}$ and ${\text{PI}}_{\text{5}}$ under atmospheric conditions should be explained

Concept Introduction:

• According to octet rule an atom is said to be in stable arrangement if its valence shell has 8 electrons and it can be achieved by gaining, losing or sharing of electrons with other atoms.
• The amount of energy released when the oppositely charged ions that are far apart combine to form an ionic bond is known as lattice energy.
• Ionization energy is the amount of energy required to lose one mole of electron.
• Steric hindrance takes place when there is a repulsive interaction due to the presence of electron cloud in a molecule.