Question

How do the transition elements form interstitial compounds? State an industrial advantage of such occurrence.

Answer 1

1. Transition elements form interstitial compounds when small atoms like hydrogen, carbon, nitrogen, or boron occupy the vacant spaces (interstices) in the metal crystal lattice.
2. These small atoms fit into the gaps without changing the metal’s chemical behavior but modify physical properties such as hardness, density, and electrical conductivity.
3. Interstitial compounds formed this way are harder and more rigid than the pure metals.
4. An industrial advantage is that such compounds, like steel (iron-carbon interstitial compound), are stronger and harder, making them useful in construction and manufacturing.