Question

0.16) Define interstitial compounds:
Explain why ionic solids are hard and brittle,​

Answer 1

Answer:

Ionic crystals are hard due to strong electrostatic forces between them.

They are brittle because ionic bond is non-directional.

Explanation:

Answer 2

Interstitial compounds are such compounds that are formed out of atoms that develop and place themselves in the form of holes.

These holes are also referred to as the interstitial holes and hence these compounds are also known as interstitial compounds.

There is a small radius in each case of the atoms.

Some of the examples of such atoms are hydrogen,boron etc.

At certain times they form alloys.

On the other hand, ionic solids are hard and brittle because of the ionic force that binds them with one another.

This is extremely high and hence it is really very hard to de shape them or to break them or transform their shapes.