1

Introduction

2

Classification of Solids

3

Types of Crystalline Solids – Part 1

4

Types of Crystalline Solids – Part 2

5

Crystal Lattices/Unit Cells

6

Types of Unit Cells

7

Crystal Systems

8

Number of Atoms in Unit Cells – Part 1

9

Number of Atoms in Unit Cells – Part 2

10

Closed Packed Structures

11

3 Dimensional Closed Packing

12

Formula of a Compound and Number of Voids Filled

13

Example 1.2

14

Locating Tetrahedral Void

15

Packing Efficiency in HCP and CCP

16

Packing Efficiency in Body Centered Cubic Structures

17

Packing Efficiency in Simple Cubc Lattice; Calculations