Wednesday, 18 August 2010

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18 Aug 2010, 9:49 am

Mercury, also known as quicksilver or hydrargyrum, is a chemical element with the symbol Hg (Latinized Greek: hydrargyrum, from "hydr-" meaning watery or runny and "argyros" meaning silver) and atomic number 80. A heavy, silvery d-block metal, mercury is one of five metallic chemical elements that are liquid at or near room temperature and pressure,[1][2] the others being caesium, francium, gallium, and rubidium. Mercury is the only metal that is liquid at standard conditions for temperature and pressure; the only other element that is liquid under these conditions is bromine.[3] With a melting point of −38.83 °C and boiling point of 356.73 °C, mercury has one of the broadest ranges of its liquid state of any metal.

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