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WHY is the element mercury liquid at room temperature?

Why is the element mercury liquid at room temperature? I've looked into this and it's got something to do with the very weak mercury-mercury bonding, and that's due to the fact that mercury atoms do not share their valence electrons readily. There are clues something odd is going on in the funny vapour pressure and surprising surface-tension, as it's a liquid that's not wet.

A few good links about this:

http://antoine.frostburg.edu/chem/senese/101/periodic/faq/why-is-mercury-liquid.shtml

http://antoine.fsu.umd.edu/chem/senese/101/periodic/faq/why-is-mercury-liquid.shtml

http://www.madsci.org/posts/archives/1997-05/862179191.Ch.r.html

http://www.sciencenet.org.uk/database/Chemistry/Original/c00044d.html

http://wiki.answers.com/Q/Why_is_Mercury_a_liquid_at_room_temperature

http://newton.dep.anl.gov/askasci/chem99/chem99277.htm

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