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Gold

What the name means: Gold is an Anglo-Saxon word that probably derived from the Sanskrit words gelwa and jval, meaning "yellow and shining". The symbol, Au, is taken from the Latin word aurum. This word derives from the word aurora, meaning "morning glow (from the East)". The Goddess of Dawn was called Aurora.

Gold

Gold atom

Gold atom

 

 

(Note: Can also form 3+ ions.)

Gold ion

 

Gold ion

 

Who identified gold?: Gold has been used since prehistoric times. It has always been a symbol of wealth, used in jewelry and for making coins. It is one of the few elements that can occur in its native form, not chemically combined to other elements. It was mined as nuggets or grains from cracks in rocks or panned from the sand and silt (alluvium) in river beds.

 

Properties

AUPROPS

STP = standard temperature and pressure.
Usually considered as room temperature and pressure.

 

About gold: Gold is a soft metal that has a yellow lustre. It does not react with most other elements or compounds. It can also be made into thin sheets known as gold leaf. Interestingly enough, gold does dissolve in mercury and forms an amalgam. The standard for gold in jewelry, for example, is based on the number of "carats". The purest gold is 24 carats. Jewelry of 12 carats would have 50% gold and 50% of a mixture of silver and copper. Most jewelry is 9 carat gold.

 

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