Compared with noble metals, base metals show_______________?
Correct answer: A. Increased hardness
- A. Increased hardness
- B. Increased ductility
- C. Better biocompatibility
- D. Increased density
Explanation
Base-metal alloys are generally harder and stronger than noble-metal alloys, although they are usually less ductile and more difficult to cast or finish. Their density is also generally lower, not higher.
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