The Qualities of Gold
Gold is a chemical element with the symbol Au and atomic number 79. As one of the higher atomic numbers, it is a precious metal and is very dense and soft. It is also malleable and ductile. It is a transition metal and belongs to the group of elements known as the noble gases. Here, we discuss some of the qualities of gold. The most important attributes of this metal include its luster and durability.
Gold has many useful properties. It is the only metal with the ability to withstand high temperatures and has the best corrosion resistance of all metals. Its high conductivity makes it a crucial part of microelectrical circuits. It is an effective heat shield and can be dissolved in glass or plastic. Because it is compatible with living systems, gold has been used in arts and crafts for centuries. As of 2016, 45% of the world’s gold is stored in international reserves.
Gold is a metal that falls to the bottom of the ocean during the sifting process. It is also the heaviest of all metals and has been found in 71 kg in 1869 in Victoria, Australia. While it does occur naturally, it is not common. There are three grades of gold, pure gold, 24 karat and 18 karat. The purity of gold is determined by its karat. The pure form of gold is called 24 karat, while the lower purity is called 12 kilo.
Besides its monetary value, gold is also used for a wide variety of applications. It is widely used in electrical wiring, electronics, medicine, and radiation shielding. It is even used to create CDs and DVDs. There are a few types of metallic gold. While they do not react with oxygen, they do react with strong acids. When dissolved in cyanide solutions, it becomes dicyanoaurate, a substance that is unreactive.
There are different kinds of gold. The yellow and orange shades of gold are the most common types. It is the heaviest metal and is the most valuable type of gold. The weight of the Welcome Stranger nugget in Victoria, Australia, was 71 kg. It is rare to find such a large nugget. It is a combination of silver and iron. It is commonly referred to as white gold. A sample of this kind is considered pure gold.
The concentrations of gold in oceans vary considerably, but the main components are gold and silver. The first one is an alloy of gold and copper. It is composed of a mix of iron and copper. The second type is a mixture of lead and zinc. The yellow and orange are both rare forms of the metal. In addition to the yellow and orange, the orange and red varieties are pure. The latter is the most expensive. In fact, it is rarer than the first two.