Mercury
MercuryMercury
Mercury’s symbol is Hg, its atomic number is 80, its atomic mass is 200.59, its in group 12 and in period 6, and it also has two valence electrons. Its standard state is liquid at 298�K and it is the heaviest known elemental liquid. It has a silvery white color. It is named after the planet "Mercury" the origin of the symbol Hg is the Latin word "hydrargyrum" meaning "liquid silver". Mercury was known to ancient Chinese and Hindus before 2000 B.C. and was found in tubes in Egyptian tombs dated from 1500 B.C. Mercury is the only metal liquid at ordinary temperatures. Mercury is sometimes called quicksilver. It sometimes occurs free in nature and is found mainly in cinnabar ore which is HgS. Cinnabar ore is found in Spain and Italy. Mercury is a heavy, silvery-white metal which forms alloys easily with many metals like gold, silver, and tin. These alloys are called amalgams. Its way of amalgamating with gold is made use of the recovery of gold from its ores. Mercury is a bad conductor of heat and a okay conductor of electricity. The most important salts are mercuric chloride HgC12 which is a corrosive and violent poison. Mercurous chloride Hg2Cl2 which used to be...
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