Chapter 3.15, Problem 1KCP

To determine

What is meant by (a) crystalline solid, (b) long-range order, (c) short range order, and (d) amorphous.

Explanation of Solution

(a)

Crystalline solid:

A solid containing ordered, repeating and three-dimensional $\left(\text{3D}\right)$ arrangement of atoms or ions in its structure is referred as crystalline solid.

(b)

Long-range order:

When the arrangement of atoms is periodic and repeating everywhere in its crystalline structure with same geometric environment, then it is referred as long-range order.

(c)

Short-range order:

The arrangement of atoms which are local or restricted to definite areas of the materials is referred as short-range order.

(d)

Amorphous:

When there is zero organized arrangement of atoms in which the atoms are positioned randomly in the structure, then it is referred as amorphous.