By: Agnes 7.2

 Name: Gold  Symbol: Au  Atomic Number: 79  Melting Point: °C ( °K, °F)  Boiling Point : °C ( °K, °F)  Date of Discovery: Circa 3000 BC  Discoverer: Unknown  Classification: Metal

 Symbol of power  Shiny  Yellow-ish(without tarnish)  Pure, undoubtly beautiful  Metallic  When finely divided it could be black, ruby or purple

 Inhaling siliceous dust  Bad handling of mercury panning on gold  Miners inhale bad airs- causes them to die  Major causes of heath hazards

 Gold is made into thread and used in embroidery  Making jewelry, coinage & monetary exchange ( Different countries)  Protects coatings, inartificial satellites ( good for reflecting & visible in light.

 Rare metal, remarkable, unparallel combination of chemical  About 10 billion tons of it are in the oceans of the world  Oldest gold jewelry by men BC

 Found in nature, quartz veins  Widely distributed even though it’s rare  Originally bright yellow but could be added or combined with other colors  Very priceful & meaningful for people, statues, icons, jewelry.  Predict in worldwide (2001) tons of it is produced  Popular for color & elegant character  Important for religious ceremonies & daily occasions

Bentor,Yinon. “Basic Information”.Chemical elements.com. 21 April Description of Gold. 25 April < answers.com/Q/Description_of_gold> “facts about Gold”. 25 April “Gold terms and descriptions”. GOLD. 25 April “Interesting Facts about Gold”. Interesting facts/strange facts. 25 Journal Article. 25 April 2010.