Final answer:
Mercury does not have the property of sonority, unlike Copper, Iron, and Gold.
Step-by-step explanation:
Sonority is the property of a metal to produce sound when struck with a hard object. Among the given options, Mercury does not have the property of sonority. This is because Mercury is a liquid metal at room temperature and does not produce a distinct sound when struck. On the other hand, metals like Copper, Iron, and Gold are solid at room temperature and can produce sound when struck, making them sonorous.
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