Gold

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Gold
Name Gold
Symbol Au
Atomic number 79
Atomic mass 196.96655 amu
Gold nugget

Gold is a chemical element. Gold is in group 11, the copper group, it has 79 protons in its nucleus. It is a precious metal which has been used as currency. Gold is found in nature as nuggets or grains in rocks, underground and in deposits. It is a soft, shiny, yellow metal.


Contents

Purity

The purity of gold in a compound is measured in Karats, with 24 karats being pure gold. 18 karat gold is three quarters gold, one quarter other elements, and so forth. Gold is usually in alloys because it is soft and pliable.

Value

Due to its characteristics being both resistant to oxidisation and rarity on Earth, gold is seen as very valuable. Gold is the basis for a monetary standard used by the International Monetary Fund (IMF) and the Bank for International Settlements (BIS). Gold is currently in excess of $1400 per ounce.[3]

Uses

Because gold is highly conductive and very resistant to oxidation, it is vital in electronics. Gold plating is used on switch contacts, printed circuit boards, and device leads. There is enough gold in electronic devices to make it worthwhile to process discarded devices in order to reclaim the gold in them.

World Production (2010) [1]

Rank Country Production (kg) Production (%)
1China320,00013
2United States223,0009
3Australia222,0009
4South Africa197,6988
5Russian Federation190,6937
6Peru182,3917
7Indonesia130,0005
8Canada97,3673
9Uzbekistan90,0003
10Ghana86,0003
11Papua New Guinea66,0002
12Brazil60,0002
13Mexico51,3932
14Colombia47,8371
15Argentina47,0001
16Mali42,0001
17Chile40,8341
18Tanzania United Republic Of40,0001
19Philippines37,0471
20Kazakhstan22,0000
21Guinea18,0830
22Kyrgyzstan16,9500
23Burkina Faso13,5000
24New Zealand13,4420
25Suriname12,1930
26Turkey12,0000
27Venezuela10,5000
28Mongolia9,8030
29Guatemala8,4850
30Guyana8,1830
31Mauritania8,0000
32Japan7,0000
33Finland7,0000
34Bolivia7,0000
35Côte D'ivoire6,5730
36Senegal5,6000
37Saudi Arabia5,5000
38Sweden5,0000
39Lao People's Democratic Republic 5,0000
40Zimbabwe4,2000


Gold was one of the three Gifts of the Magi, along with frankincense and myrrh.[2]

Gold is also used in jewelry. However, the New Testament instructs Christian women not to wear gold or pearls.[3] Other uses of gold include aerospace, awards, bullion, coinage, computers, currency backing, dentistry, electronics, glassmaking, gold gilding and gold leaf and medical. [4]

References

  1. http://www.world-nuclear.org/info/inf23.html
  2. Matthew 2:11 [1]
  3. I Timothy 2:9 [2]
  4. The Many Uses of Gold, Geology.com, accessed December 11, 2008
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