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Few Important Points On Gold

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Few Important Points On Gold

Post  bejoy on Tue Jul 11, 2017 12:32 am

1. What is gold?

Gold is an element with atomic symbol as Au and with atomic number as 79. In its cleanest form, it is a dense, bright, marginally reddish yellow, delicate, malleable, and ductile element.

Chemically, it is a transition element and element of group 11. It is one of the least reactive elements and is solid under standard conditions.

Gold often occurs in free elemental form, as grains, in rocks, in veins, and in alluvial deposits.

Gold has a density of 19.3 g/cm3.Oxidation state of gold ranges from −1 to +5. Gold has been broadly used all through the world as money, for indirect exchange.

2. Why is Gold symbolised as AU?

The English word "Gold" originates from an Anglo-Saxon word "Gohl," thought to signify "yellow, green or shiny.

Gold derives its chemical symbol AU from the Latin word "Aurum", which signifies "Gold". The Latin word for gold refers to the elements colour, which ranges from a light yellow to a shimmery sandstone colour or a deep, rich brazen hue.

3. Where is Gold found on earth?

Gold is available in the crust and mantle in low concentration. Gold is not made but rather found as ore in rocks.

Gold is found all through the earth and sea however there are natural spots where we can recover substantially higher concentration of this yellow metal. Gold is found typically, related with quartz veins which are located in granite and rock in our planet Earth.

Primary often, gold is what is found in rock formations. Secondary, it is found in waterways that have run through these rock and mineral formations.

The biggest known deposits of gold show up on two continents, they are Africa and India. In these two continents, South Africa is the one which has largest concentrations of gold.

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