Which properties of mercury make it a good material to use in a thermostat

*The metal is relatively soft when compared to other transition metals, probably because the d electrons do not participate in calls.

*Melting points and boiling are very low.

*At room temperature, the fluid has an appreciable vapor pressure. Therefore, the exposed surfaces of mercury should always be covered to prevent evaporation and, consequently, the risk of poisoning.

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Igonna be honest i dunno that one srry