What is the term for a material formed by combining two or more elements, typically metals?

• A. Polymers
• B. Ceramics
• C. Alloys
• D. Composites

Answer: (C)

Combining two or more elements to produce a material with properties that are better or different from the constituents is the idea behind alloys. An alloy is a substance formed when metals are blended with other elements, typically to improve strength, hardness, or durability. Classic examples include steel, which blends iron with carbon (and often other elements), bronze (copper with tin), and brass (copper with zinc).

Polymers are long chains of organic molecules, not metal-based blends. Ceramics are inorganic, non-metallic solids like silica or alumina. Composites combine two or more materials to gain their combined advantages, such as fiberglass (glass fibers in a polymer) or concrete (cement with aggregates). Since the question describes a material formed by combining elements and typically metals, the term that fits best is alloy.