Question

Define the following.
i) Crystalline substance
ii) amorphous substance

Answer 1

The atoms in crystalline solid matter are arranged in regular, repeating .patterns. All other types of solid matter are amorphous or without a regular atomic arrangement. Metals and minerals are crystalline. Glass is amorphous

In condensed matter physics and materials science, an amorphous or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal. In some older books, the term has been used synonymously with glass.

Answer 2

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$\red\bigstar$ Crystalline substance :–

The substance whose constituents are arranged in an orderly manner, leading to definite three dimensional geometrical shape is called Crystalline substance.

$\red\bigstar$ Amorphous substance :–

A substance whose constituents are arranged in an irregular manner is called an Amorphous substance.

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