Question

Define (a) malleability, and (b) ductility.

Answer 1

Malleability is the ability of a material to deform under stess (compressive stress). If a material is malleable then it can be converted into thin sheets by hammering or rolling.

Ductility of a material is the ability to stretch under stress (tensile stress). If a material is ductile it can be converted into thin wires.