Like bromine, it is a liquid at room temperature.
Most UV fluorescent lamps pass a current through this element. This element's plus-one oxidation state is dimeric and divalent. It forms a convex meniscus in a glass tube because it preferentially exhibits adhesion, not cohesion. This element dissolves gold to form an amalgam. 760 millimeters of this element is equivalent to one atmosphere of pressure, as it is commonly used in manometers. It is bonded to sulfur in a compound used as a preservative in vaccines, and foolishly blamed for autism, thiomersal. Like bromine, it is a liquid at room temperature. For 10 points, name this metal with atomic number 80 and symbol Hg.
Most UV fluorescent lamps pass a current through this element.
mercury [or Hg before mention]