Alloy is defined as ...

Alloy is defined as ...

• A. A mixture of two or more metals that are dissolved with each other when in the liquid state
• B. An artificial tooth
• C. A program of dentistry
• D. A coating for pits and fissures

Answer: (A)

An alloy is a substance formed by combining two or more elements, usually metals, so they form a single material with properties that differ from the original elements. Typically this involves melting the components and mixing them so they dissolve in the liquid state, then cooling to form a solid solution. That idea—metals that are dissolved into one another in the liquid state to make a new material—is what the statement conveys, making it the best description of an alloy. The other options describe dental items or services (an artificial tooth, a dentistry program, or a coating for pits and fissures) rather than a material formed by blending metals.

An alloy is a substance formed by combining two or more elements, usually metals, so they form a single material with properties that differ from the original elements. Typically this involves melting the components and mixing them so they dissolve in the liquid state, then cooling to form a solid solution. That idea—metals that are dissolved into one another in the liquid state to make a new material—is what the statement conveys, making it the best description of an alloy. The other options describe dental items or services (an artificial tooth, a dentistry program, or a coating for pits and fissures) rather than a material formed by blending metals.