Question

Transition metals form alloys with other metals. Explain.

Hint:

Interstitial compounds are different: they form when small atoms (H, C, N) get trapped in the lattice gaps. Alloys involve metal-metal substitution.

Answer 1

1. Transition metals have very similar atomic sizes (radii) within a series (e.g., Cr, Mn, Fe, Co, Ni).
2. Because the atoms are of similar size, atoms of one metal can easily replace the atoms of another metal in its crystal lattice without disrupting the structure significantly.
3. This ready substitution allows the formation of solid solutions or alloys (like Brass, Bronze, Steel) which are hard and have high melting points.