Mercury got its name from the planet Mercury. The latin name, and also the element symbol (Hg) is Hyrdragyrum. It has the prefix hydra because it is one of the only liquid elements in the periodic table. The element was discovered by ancitent Chinese and Hindus before 2000 BC.
Melting point: 234.32 [‑38.83 °C (‑37.89 °F)] K
Boiling point: 629.88 [356.73 °C (674.11 °F)] K
*Mercury vapor should not exceed 0.1 mg m-3 in air
*It’s the heaviest know liquid element
*Mercury is one of the elements which has an alchemical symbol (meaning that it can change into other elements)