The chemical symbol is Ag, with an atomic number of 47, and it is a white, glossy transition metal. The content in the crust is relatively low, mainly existing in the form of sulfide ores, and often coexisting with other metal ores. Known for its excellent conductivity, thermal conductivity, and reflectivity, it is a material second only to copper in electrical and thermal conductivity applications. These characteristics make it very important in the electronics industry, especially in high-precision instruments and high reliability circuits. Another important use is as a metal for investment and currency. Silver bars and silver coins are common forms for investors to preserve their value and invest in precious metals. In addition, silver is widely used in jewelry manufacturing.

The chemical symbol is Cu, with an atomic number of 29, and it is a red metallic element with high conductivity and thermal conductivity. It is relatively abundant in the Earth's crust and is one of the earliest metals used by humans, with a long history. Its physical properties make it widely used in various industrial fields. It is an indispensable material in electrical engineering, used for manufacturing wires, cables, and motors. The conductivity is second only to silver, but it is more common in practical applications due to its lower cost and ease of processing. In addition to electrical applications, copper is also used to manufacture pipes, roofing materials, coins, and various decorations. Equally important in both industrial and artistic fields

The chemical symbol is Sb, with an atomic number of 51, and it is a silver gray metallic element. The content in the Earth's crust is relatively low, mainly existing in sulfide minerals such as antimonite and antimonite. The physical properties are relatively unique, brittle at room temperature, but become soft and easy to process after heating. Low melting point, low conductivity and thermal expansion make it suitable for specific industrial applications. The main applications include manufacturing alloys, such as antimony lead alloys, to enhance the hardness and corrosion resistance of metals. Antimony as an additive can improve the performance of batteries, especially lead-acid batteries. In addition, it is also used in the production of flame retardants.

The chemical formula is CdS, which is a sulfide mineral mainly composed of cadmium and sulfur. It usually appears in the form of yellow to orange crystals or powders, with a metallic luster, and is an important source for extracting cadmium. It is not common in nature and usually coexists with zinc minerals, lead minerals, and other sulfide minerals. Mainly formed in mid to low temperature hydrothermal veins or sedimentary rocks, especially in sulfate layers in sedimentary rocks. Due to the low content of cadmium in the Earth's crust, the reserves of cadmium sulfide minerals are relatively small. The industrial application of cadmium sulfide ore mainly focuses on the production of cadmium compounds. In addition, cadmium compounds are also used for control rods in batteries, electroplating, and nuclear reactors.

It is a naturally occurring allotrope of carbon, known as "black lead" or "pencil lead" in its high-purity form. The chemical formula is C and the atomic number is 6. It has a layered structure, in which carbon atoms form a hexagonal planar network structure with sp ² hybridized orbitals, and are stacked on top of each other through weak van der Waals forces. Due to its low hardness, it can leave marks on paper and is therefore used as a lead material for pencils. Graphite has good electrical and thermal conductivity, which makes it widely used in fields such as battery electrodes, electric brushes, and lubricants. Lubrication also makes it an ideal material for manufacturing mechanical parts and seals.

The chemical symbol is Be, with an atomic number of 4, and it is a lightweight, steel gray alkaline earth metal. The content in the crust is relatively low, about the 97th most abundant element in the crust. It usually exists in the form of compounds in minerals, such as beryl and siliceous beryllium. Low density, high hardness, and good thermal stability and electrical conductivity. Beryllium is very important in many high-tech applications, especially as a neutron reflector and neutron absorber in nuclear reactors. It is also used as a structural material for manufacturing aircraft and spacecraft, as it provides a combination of high strength and lightweight.

The chemical symbol is Mn, with an atomic number of 25, and it is a gray white, hard, and brittle transition metal. It is relatively abundant in the Earth's crust and is the twelfth most abundant element. In nature, it usually exists in the form of compounds, such as manganese ore, mainly including manganese carbonate, manganese oxide, and manganese silicate. It has a wide range of applications in industry, especially in steel production, which can improve the strength and hardness of steel while enhancing its processing performance. Adding can prevent corrosion and wear of steel, thus playing an important role in the manufacturing of wear-resistant steel, stainless steel, and alloy steel. It is also used to manufacture products such as dry batteries, dyes, glass, and ceramics.

It is a lithium containing mica mineral with a chemical composition of K (Li, Al) 2-3 (Si3Al) O10 (F, OH) 2, belonging to the mica group of minerals. Usually presented in shades of purple, pink, gray, or green, with a pearl luster and a layered structure that can be peeled off into thin sheets. Mainly produced in granite, pegmatite, and certain metamorphic rocks, it is one of the important mineral resources for extracting lithium and is not commonly found in nature. Due to the wide applications of lithium in modern industry, such as battery manufacturing, ceramics, glass, and lubricants, the mining and utilization of lithium mica have important economic value.

It is a chemical element with the chemical symbol Co and an atomic number of 27. Similar to nickel, it mainly exists in the form of compounds in the Earth's crust, except for a small amount of cobalt found in natural meteorite iron alloys. Pure cobalt obtained through reduction smelting is a hard, shiny, slightly brittle gray metal. Cobalt based blue pigments (such as cobalt blue) have been used in jewelry and painting since ancient times, as well as giving glass its unique blue hue. It is widely used in art and industry due to its stability and vibrant blue color. Cobalt compounds are also very important in ceramic and glass manufacturing, as they can produce various shades ranging from deep blue to light blue.

Bismuth is a chemical element with the chemical symbol Bi, atomic number 83, and atomic weight 208.98040 u. Bismuth is a poor metal with chemical properties similar to arsenic and antimony, both belonging to the nitrogen group. Bismuth can be found in nature, and its sulfides and oxides are important commercial ores. The density of pure bismuth is 86% of that of pure lead. When it is first produced, it is a silver white brittle metal, but its surface turns pink after oxidation. Bismuth is a natural diamagnetic metal and one of the elements with the lowest thermal conductivity among metals.