Silver is a simple metal with the symbol of Ag, which has ductility and good thermal and electrical conductivity.
Silver, namely silver, is called silver because of its white color, as opposed to gold. Think of it as money and decorations.
In ancient times, money was called silver. Pure silver is white in color, metallic in luster with impurities, soft in quality, hardened with impurities, and grayish red in color. Pure silver has a specific gravity of 10.5, a melting point of 960.5℃, good conductivity, and is soluble in nitric acid and sulfuric acid. Silver is one of the metals found in ancient times.
Although silver also exists in the form of simple substance in nature, most of it exists in the form of combined state. Silver has high ductility, so it can be rolled into a transparent foil with a thickness of only 0.3 microns, and silver particles with a weight of 1 g can be drawn into filaments about two kilometers long. The thermal conductivity and electrical conductivity of silver are among the best among metals.
In ancient times, people knew about silver. Like gold, silver is a precious metal with a long history of application, which has a history of more than 4,000 years. Because of the unique and excellent characteristics of silver, people give it dual value of money and decoration. The pound and silver dollar used before the liberation of China were silver and copper alloys. 1 silver in Qing dynasty is equivalent to 400-500 yuan RMB today.
Silver is more active than gold. Although its abundance in the crust is about 15 times that of gold, it rarely exists as a single substance, so it was discovered later than gold. In ancient times, people already knew how to mine silver ore, because the amount of silver obtained at that time was very small, which made its value more expensive than gold. From BC 1780 to BC 1580, the Egyptian code stipulated that the value of silver was twice that of gold. Even in the17th century, the value of Japanese gold and silver was equal. Silver was first used as decorations and tableware, and later used as currency.
Silver, namely silver, is called silver because of its white color, as opposed to gold. Think of it as money and decorations. In ancient times, money was called silver. Silver always shines like the moon. The original meaning of silver paper is "bright". In China, silver characters are also commonly used to describe white and shiny things, such as the Milky Way, Ginkgo biloba, whitebait, tremella, screens and so on.