Mercury, the only metal that is liquid at room temperature, solidifies at a temperature of -38.83 degrees Celsius (-37.89 degrees Fahrenheit). At this temperature, the unique properties of mercury change, causing it to transition from its liquid state to a solid form.
The freezing point of mercury is interesting because it remains liquid at temperatures much lower than those at which many other metals solidify. This unusual characteristic is due to its atomic structure and the type of bonding present in mercury, which influences how it behaves at different temperatures.
For practical purposes, in cold environments or laboratories, when temperatures fall below -38.83 °C, mercury will solidify and may appear as a shiny, silver-grey solid rather than the liquid we commonly see.