Chapter 3, Problem 3.33P

Interpretation Introduction

(a)

Interpretation:

The number of atoms per unit cell is to be calculated.

Concept Introduction:

The most basic repeating structure of any solid is said to be the unit cell consuming least volume. The repeating pattern of unit cells results in a network said to be a lattice.

An atom's coordination number in a unit cell is equal to the number of atoms it touches in the cell.

Interpretation Introduction

(b)

Interpretation:

Explanation about the change in crystal structure if the atom is located in a different manner as below:

  $\begin{array}{l}Znat\left(0,0,0\right)and\left(1/3,2/3,1/2\right)\hfill \\ Oat\left(0,0,3/8\right)and\left(1/3,2/3,7/8\right)\hfill \end{array}$

Concept Introduction:

The most basic repeating structure of any solid is said to be the unit cell consuming least volume. The repeating pattern of unit cells results in a network said to be a lattice.

Interpretation Introduction

(c)

Interpretation:

The number of atoms in single ZnO nanowire is to be calculated.

Concept Introduction:

To find a number of an atom in single ZnO nanowire:

  $\begin{array}{l}{N}_A=\frac{\left(volumeofnanowire\right)}{\left(volumeofunitcell\right)}\times atomperunitcell\hfill \\ \hfill \end{array}$