Gold does not have 100%pure gold. 4 Article 9 is already possible. Gold is a single quality of chemical element gold. It is a soft, golden precious metal. Gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments. Gold physical properties 1, color: The steam emitted when gold is melted is yellow -green; its gold powder is usually brown during the smelting process; One piece, it can convey green light. 2, ductility: is extremely strong. 1 ounce of gold can be pulled into 50 miles long, and its ductility makes it easy to cast and is a good choice for making jewelry. Gold is the strongest in the metal. 3, forgedness: INO. It can cause extremely thin and easy to roll up. 1 ounce of gold can be hammered to 1 foot thick and 100 square feet with a large area of 4 million. The ancients hammered it into a thin piece and paved into the temple for decoration. These can explain the flexibility and forgedness of gold. The color of gold is golden yellow, metal luster, difficult to break down. The density is 19.3g/cubic centimeter, and the melting point is 1064 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. The resistance of pure gold is 2.4P. Pure gold has good anti -chemical corrosion and is the best electroplating material. Gold, as a precious metal, has good physical characteristics. "Real Gold is not afraid of fire" is that the chemical stability of gold is very high. It is not easy to chemically react with other materials. You don't have to worry about oxidation and discoloration. Even in the melting state, it will not be oxidized and discolored. The density is strong and the feel is heavy. Good toughness and ductility, good guidance. Pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly. For example, gold and copper alloy are dark red, and the silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced. The atomic order in the Menjiev cycle table is 79, that is, the golden nucleus of the gold contains 79 protons, and the proton belt is positive. At the same time, due to the conformity of half full rules, gold has good chemical stability. In the metal market, metals such as crickets, 铑, 钯, 锇, 铱, and platinum are collectively referred to as precious metals. although gold is a very soft metal, it is not as good as lead and tin metal. Use nails on pure gold to draw traces. This softness makes gold very easy to process. However, this point is not ideal for the maker of the decoration, because it is easy to make the decorations hurt and make it make it make it wound and make it it. Lost luster and even affect beauty. Therefore, when making jewelry with gold, copper and silver are generally added to improve their hardness. It gold is forged and easy to extend, which can be crushed to a transparent and transparent green foil with a thickness of 0.001 mm. 0.5 grams of gold can be pulled into a 160 -meter -long golden.
This question seemed a bit without the brain! What is the pure gold you understand? 100 % gold? As long as the purity reaches more than 99 %, it can be called pure gold. Is it a pure gold? It requires professional equipment identification. You ask if the gold of a jewelry brand is pure gold, and how can others answer you without the real thing? Even if someone has bought the gold of this brand, it is indeed pure gold, and it cannot guarantee that you buy it.
The gold of Chanxin Jewelry is pure. The emperors made by Sanjin are all gold, and they are all pure gold. They are all pure gold, so if you choose gold jewelry yellow, then you can deliver the goods to the Caixin.
Gold is not equal to pure gold. The gold content of 99 % of the gold content is called sufficient gold, the gold content is 999th, which is called thousands of gold. nonexistent.
1. When you stop, don't forget that others are still running. 2. The most tiring thing in the world is to live a hypocrisy. 3. There is no so -called failure, unless you no longer try.
Gold does not have 100%pure gold.
4 Article 9 is already possible.
Gold is a single quality of chemical element gold. It is a soft, golden precious metal. Gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments.
Gold physical properties
1, color:
The steam emitted when gold is melted is yellow -green; its gold powder is usually brown during the smelting process; One piece, it can convey green light.
2, ductility:
is extremely strong. 1 ounce of gold can be pulled into 50 miles long, and its ductility makes it easy to cast and is a good choice for making jewelry. Gold is the strongest in the metal.
3, forgedness:
INO. It can cause extremely thin and easy to roll up. 1 ounce of gold can be hammered to 1 foot thick and 100 square feet with a large area of 4 million. The ancients hammered it into a thin piece and paved into the temple for decoration. These can explain the flexibility and forgedness of gold.
The color of gold is golden yellow, metal luster, difficult to break down. The density is 19.3g/cubic centimeter, and the melting point is 1064 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. The resistance of pure gold is 2.4P. Pure gold has good anti -chemical corrosion and is the best electroplating material.
Gold, as a precious metal, has good physical characteristics. "Real Gold is not afraid of fire" is that the chemical stability of gold is very high. It is not easy to chemically react with other materials. You don't have to worry about oxidation and discoloration. Even in the melting state, it will not be oxidized and discolored. The density is strong and the feel is heavy. Good toughness and ductility, good guidance. Pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly. For example, gold and copper alloy are dark red, and the silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced.
The atomic order in the Menjiev cycle table is 79, that is, the golden nucleus of the gold contains 79 protons, and the proton belt is positive. At the same time, due to the conformity of half full rules, gold has good chemical stability. In the metal market, metals such as crickets, 铑, 钯, 锇, 铱, and platinum are collectively referred to as precious metals.
although gold is a very soft metal, it is not as good as lead and tin metal. Use nails on pure gold to draw traces. This softness makes gold very easy to process. However, this point is not ideal for the maker of the decoration, because it is easy to make the decorations hurt and make it make it make it wound and make it it. Lost luster and even affect beauty. Therefore, when making jewelry with gold, copper and silver are generally added to improve their hardness.
It gold is forged and easy to extend, which can be crushed to a transparent and transparent green foil with a thickness of 0.001 mm. 0.5 grams of gold can be pulled into a 160 -meter -long golden.
This question seemed a bit without the brain! What is the pure gold you understand? 100 % gold? As long as the purity reaches more than 99 %, it can be called pure gold. Is it a pure gold? It requires professional equipment identification. You ask if the gold of a jewelry brand is pure gold, and how can others answer you without the real thing? Even if someone has bought the gold of this brand, it is indeed pure gold, and it cannot guarantee that you buy it.
The gold of Chanxin Jewelry is pure. The emperors made by Sanjin are all gold, and they are all pure gold. They are all pure gold, so if you choose gold jewelry yellow, then you can deliver the goods to the Caixin.
Gold is not equal to pure gold. The gold content of 99 % of the gold content is called sufficient gold, the gold content is 999th, which is called thousands of gold. nonexistent.
1. When you stop, don't forget that others are still running. 2. The most tiring thing in the world is to live a hypocrisy. 3. There is no so -called failure, unless you no longer try.