The density of solid mercury (Hg) and liquid mercury at room temperature are as follows:
Density of Solid Mercury (Hg): The density of solid mercury is approximately 13.5 grams per cubic centimeter (g/cm³) or 13,500 kilograms per cubic meter (kg/m³). It is worth noting that solid mercury is a relatively rare form of mercury and only occurs under specific conditions, such as extremely low temperatures below -38.87 degrees Celsius (-37.97 degrees Fahrenheit).
Density of Liquid Mercury (Hg): The density of liquid mercury at room temperature, which is typically around 20 degrees Celsius (68 degrees Fahrenheit), is approximately 13.6 g/cm³ or 13,600 kg/m³. Liquid mercury is well-known for its high density, which makes it unique among common liquids.
Please be aware that mercury is a toxic substance, and proper precautions should be taken when handling it.