Chapter 21, Problem 21.59SP

Interpretation Introduction

Interpretation:

Use the electron-sea model to explain the bonding that occurs in pure cesium metal which we are told has a body-cantered cubic structure.

Concept introduction:

• There are two theoretical models for bonding in metals which are the electron-sea model and the molecular orbital theory.
• The electron-sea model, when a metal crystal is viewed as a three-dimensional array of metal cations immersed in a sea of delocalized electrons that are free to move throughout the crystal.
• Metals with one valence electron crystallize in a body-cantered cubic structure where each central metal atom is surround by 8 neighbouring atoms.

To classify: Bonding in cesium metal using the electron-sea model.