Density - 13.53 g/ml
Mercury is used in thermometers because it is so dense that it doesn't expand very much. Unlike water which is 1 g/ml density mercury is 13.53 g/ml.
Mercury is also used in your household thermostat. When you move the knob to set the temperature you're also moving a small sealed flask of mercury that has two wires in it. When the mercury is tipped over it connects the ciruit which turns on your heat or cooling.
This is a link to a virtual reality model of the crystal structure of mercury.
Melting point - 234.28 K
Boiling point - 630 K
Electron configuration - [Xe] 4f14 5d10 6s2
Mercury is commonly used in scientific labs for making thermometers, barometers, diffusion pumps, and many other instruments. It is used for mercury switches and other electrical equipment. It is also used for making batteries (mercury cells).
Mercury is used in high quality antifouling paints.
Mercury, in its gas state, is used in mercury-vapour lamps and advertising signs.
Mercury is used for making some pesticides.
MERCURY ELECTRON DIAGRAM
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