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Pros of extraction
1.extracting gold gives opportunity for a job this lowers the unemployed rate in countries

2. gold helps the economy especially in countries where there is a abundance for example Australia

Cons of extraction
1.the extraction process includes heavy and toxic metals including cyanide this contaminates water and soil it also drift out in the ocean killing marines animals aswell

2. heath risks to workers and public extracting gold releases toxic and heavy metals including cyanide this can get in people things food and water killing or injuring them.

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https://www.webelements.com/gold/physics.html
https://www.brilliantearth.com/gold-mining-environment/
https://www.quora.com/Why-isnt-the-element-gold-reactive
http://onlygold.com/Info/History-Of-Gold.as
https://geology.com/minerals/gold/uses-of-gold.shtml
https://en.wikipedia.org/wiki/Miller_process

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Small scale gold mining is usually fine, it 's the large scale/dirty mining that is a problem the purification process is extremely bad for the environment this dumps mercury, cyanide and heavy metals into the water and soil killing plants and animals a more in Papua New Guinea dumps 5 millions tons in the Pacific killing corals and fish.

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Uses fro gold include jewellery , decorative items , dental fillings and in electronics as it is a conductor as well as it gets the information through quickly

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Gold is not very reactive, it does react to oxygen, water or most acids. Gold has a single atom on its most 6s orbit which would usually indicate high reactivity but it is tightly bound to the nuclei

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Gold extracted by amalgamation or cyanidation  a variety of impurities, including zinc, copper, silver, and iron. Two methods are commonly used for purification: the Miller process and the Wohlwill process. The Miller process involves blowing a stream of pure chlorine gas through a cubical of molten impure gold this works because neally every element will chlorides. The Wohlwill process involvesinvolves using a cast gold ingot, of 95%+ gold to serve as an anode, lower percentages of gold in the anode will interfere with the reaction, especially when the contaminating metal is silver or one of the platinum group elements.

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It was found in ancient times and there is no actual time record, but its first use was in 700 BC with gold coins made by the Lydians. It was first found by ancient people

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Symbol: Au
Melting point: 1,064 °C

Atomic number: 79

Atomic mass: 196.96657 u

Boiling point: 2,700 °C
Number of protons:79
Number of Electrons:79
Density:19.32 grams per cubic centimeter

Does it conduct electricity: yes
Maluable: yes gold is a very soft metal