Gold is a chemical element with the symbol Au and atomic number 79. It is a dense, soft, malleable, and ductile metal with a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements, and is solid under standard conditions. Gold often occurs in free elemental (native) form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum) and also naturally alloyed with copper and palladium. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).
Gold has been known to people since ancient times. It has been used as a form of currency for over 3,000 years and is still considered to be one of the most valuable metals in the world. Gold is also used in jewelry, electronics, and dentistry.
The industrial uses of gold are based on its unique physical properties. Gold is an excellent conductor of heat and electricity, which makes it ideal for use in electronics. It is also very malleable, which makes it easy to work with. Gold is also very corrosion-resistant, which makes it ideal for use in jewelry and other applications where it will be exposed to the elements.
Here are some of the industrial uses of gold:
Electronics: Gold is used in a variety of electronic devices, including computers, cell phones, and televisions. It is used in the connectors and wires that carry electrical signals. Gold's conductivity and corrosion resistance make it ideal for these applications.
Jewelry: Gold is the most popular metal used in jewelry. It is prized for its beauty and durability. Gold is also used in dental fillings and other medical applications.
Dentistry: Gold is used in dental fillings and other medical applications. It is biocompatible, meaning that it does not react with the body's tissues. Gold is also very durable and long-lasting.
Aerospace: Gold is used in the aerospace industry for a variety of applications, including spacecraft and aircraft. It is used in the engines and other components that are exposed to high temperatures and pressures. Gold's corrosion resistance and high melting point make it ideal for these applications.
Medicine: Gold is used in medicine for a variety of applications, including cancer treatment and arthritis treatment. Gold is a very biocompatible metal, meaning that it does not react with the body's tissues. Gold is also very dense, which makes it ideal for use in radiation therapy.
Currency: Gold has been used as a form of currency for over 3,000 years. It is still considered to be one of the most valuable metals in the world. Gold is a store of value and a hedge against inflation.
Gold is a very versatile metal with a wide range of industrial uses. Its unique physical properties make it ideal for use in a variety of applications.
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en.wikipedia.org/wiki/Period_6_element
en.wikipedia.org/wiki/Gold
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