What is Gold?

gold is a chemical element with atomic number 79 and chemical symbol “Au”. It is a soft, shiny, yellow metal. found in the solid state in nature. The word gold derives from the Latin aurumwhich means ‘bright dawn’.

However, the term gold can also be used in other senses, among which its use stands out as a synonym for wealth or wealth to refer to the monetary value that this metal represents. For example, “Mr. Uslar shares his gold with the most destitute of the city.”

Gold as a chemical element and metal

Prayed

In the image you can see a gold nugget in its natural state.

Gold is a chemical element that is located in group 11 of the periodic table, like silver and copper, and its symbol is “Au”.

It is a precious metal that is found in a solid and pure state both in the earth’s crust and in the seabeds and rivers, although in small quantities.

Its extraction is carried out through the cyanide leaching process, however this technique is harmful and very toxic to the environment. However, in rivers, the batting technique is usually applied, which is less harmful to the ecosystem.

gold is a soft, yellow transition metal, which is characterized by being ductile. It is well preserved thanks to the fact that it does not react with a large number of chemical compounds.

Likewise, gold has been the most used metal since ancient times, especially in handicrafts, for more than 5,000 years. For example, there is evidence that the ancient Egyptian civilizations knew and used gold in the elaboration of various artifacts.

Therefore, since then gold has been considered a precious metal and of great value Therefore, it has been used to mint coins, make jewelry and other handicrafts and luxury items of high monetary value.

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Characteristics of gold

The main characteristics of gold are:

  • It has a bright yellow color in its pure state, but with alloys it can change its hue a little.
  • It is a good conductor of heat and electricity.
  • It is a metal that stands out for being very flexible and soft.
  • It is a ductile metal.
  • It has high resistance to oxidation and various chemical agents.
  • It is a metal unalterable by air and moisture.
  • It is a metal that reacts in chlorides.
  • It is a dense metal with high degrees of melting and boiling.

gold properties

The main properties of gold are the following:

Atomic number 79
chemical symbol wow
Natural state solid
Atomic mass 196.966569(4) or
Electronic configuration [Xe] 4f145 d96ptwo
Density 19,300kg/m3
Boiling point 2856°C
Melting point 1064°C
Oxidation state 1+ and 3+

Uses and applications of gold

Gold is a metal that is widely used in various areas, especially in the area of ​​jewelry, coin manufacturing and the electronics industry. It is also part of the reserves and economic investments of the countries. The main uses include the following:

  • Jewelry making, about 70% of the gold is used for this activity.
  • Coin making.
  • Manufacture of medals.
  • In medicine it is used for the preparation of therapeutic and cancer drugs.
  • In cosmetics it is used in the preparation of facial creams.
  • It is a metal used in the manufacture of aircraft engines.
  • It is used as a protective coating in the manufacture of satellites.
  • In dentistry, gold is used in the manufacture of dental prostheses.
  • It is used in the manufacture of household items such as cutlery or plates.
  • Thanks to its conductivity and resistance to oxidation, it is used in the manufacture of electrical connections.
  • Its use has spread to the area of ​​health for therapeutic purposes and in the preparation of medicines.
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See also Metal.