Symbol: AuAtomic Number: 79Atomic Weight: 196.966Classification: transition metalPhase in ~ Room Temperature: SolidDensity: 19.282 grams per cm cubedMelting Point: 1064°C, 1947°FBoiling Point: 2856°C, 5173°FDiscovered by: Known about since ancient timesGold is the 3rd element in the eleventh shaft of the routine table. That is classified together a shift metal. Yellow atoms have 79 electrons and 79 protons through 118 neutrons in the most abundant isotope.Characteristics and also PropertiesUnder standard conditions gold is a shining yellow metal. The is really dense and heavy, yet also relatively soft. Gold is the many malleable of the metals an interpretation that it can be pounded into a an extremely thin sheet. It is additionally one that the many ductile metals and also can be conveniently stretched into a lengthy wire.Gold is much more than simply a beautiful metal. That is wonderful conductor the electricity and heat. That is also one the the many resistant steels to corrosion and rust when exposed come air and also water.Where is it found on Earth?Gold is really rare aspect on Earth. Because it doesn"t reaction with an extremely many other elements, it is often found in that native type in the Earth"s crust or combined with other steels like silver. It have the right to be uncovered in veins underground or in little fragments in sandy riverbeds.Gold is also found in ocean water. However, the process for retrieving gold from s water costs more than the yellow itself.How is gold used today?Gold has been provided for thousands of years to do jewelry and coins. Today it is still provided for jewelry and for part collector"s execution coins. Gold is likewise considered crucial and trustworthy investment.

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When gold is used as jewel or because that coins, it is usually not pure gold. Pure gold is referred to as 24 karat gold and also it is very soft. Typically gold is alloyed with other steels such as copper or silver in order to make it harder and an ext durable.Gold is provided a lot of in the electronic devices industry due to the fact that of its good electrical conductivity and resistance to corrosion. Plenty of electrical contacts and also connectors room plated v gold for protection and also reliability.Other applications for gold incorporate heat shielding, dentist work, cancer treatment, and also decoration such together gold thread and also gold plating.How was it discovered?
Gold has actually been known about since old times. Civilizations such as old Egypt provided gold over 5000 years ago. It has long been a substance of value and also wealth.Where did gold gain its name?Gold it s okay its name from the Anglo-Saxon native "geolo" for yellow. The prize Au comes from the Latin word for gold, "aurum."IsotopesGold has actually only one naturally occurring stable isotope: gold-197.Interesting Facts about GoldA solitary ounce of gold deserve to be pounded right into a sheet 300 feet vast by 300 feet long. That"s bigger than a soccer field! That same ounce can kind a wire virtually 100 kilometers long.Gold have the right to be pounded thin enough to enable light come shine through.If every the gold ever uncovered by male was melted down it would kind a cube through sides of about 25 meter each.
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