Chapter 20.5, Problem 20.10.2PE

(a)

Interpretation Introduction

To determine: The authenticity of the statement “As you go down column $\text{4A}$ in the periodic table, the elemental solids become more electrically conducting.

(b)

Interpretation Introduction

To determine: The authenticity of the statement “As you go down column $\text{4A}$ in the periodic table, the band gaps of the elemental solids decrease.

(c)

Interpretation Introduction

To determine: The authenticity of the statement “The valence electron count for a compound semiconductor averages out to four per atom.

(d)

Interpretation Introduction

To determine: The authenticity of the statement “Band gap energies of semiconductors range from $0.1$ to $3.5\text{eV}$ .

(e)

Interpretation Introduction

To determine: The authenticity of the statement “In general, the more polar the bonds are in compound semiconductors, the smaller the band gap.