The meaning of germanium

Germanium is a chemical element.

Its chemical symbol is Ge, atomic number is 32, and atomic weight is 72.64. It is located in period 4 and group IVA of the periodic table of chemical elements. Germanium is a gray-white metalloid that is shiny and hard. It belongs to the carbon family. Its chemical properties are similar to those of tin and silicon in the same family. It is insoluble in water, hydrochloric acid, and dilute caustic alkali solutions.

Soluble in aqua regia, concentrated nitric acid or sulfuric acid, it is amphoteric, so it is soluble in molten alkali, alkali peroxide, alkali metal nitrate or carbonate, and is relatively stable in the air. In nature, There are five isotopes of germanium: 70, 72, 73, 74, and 76. It reacts with oxygen above 700℃ to form GeO2, and reacts with hydrogen above 1000℃. Fine powdered germanium can burn in chlorine or bromine.

Germanium is an excellent semiconductor that can be used to detect high-frequency currents and rectify alternating current. In addition, it can be used in infrared light materials, precision instruments, and catalysts. Germanium compounds can be used to make fluorescent panels and various glasses with high refractive index. Germanium, tin and lead belong to the same group in the periodic table of elements. The latter two have been discovered and utilized by ancient people, but germanium has not been mined on an industrial scale for a long time.

Jingle summary of the periodic table of chemical elements:

1. I am hydrogen, I am the lightest, and rockets rely on me to transport satellites. I am nitrogen, I am a rogue, I am the best at gaining and losing electrons. I am potassium, which has low density. It bubbles up when it comes into contact with water or acid. I am wrinkled and shameless, although it is a metal that is difficult to ionize. I'm boron, a little red, and I'm poor when it comes to electrons. I am carbon, which reacts slowly and can form both chains and rings. I am nitrogen, I am flame retardant, and can be synthesized by hydrogenation.

2. I am oxygen. You don’t have to think about it. You will feel panicked if you leave me. I am Fluorine, the most vicious, and I am satisfied with just grabbing an electron. I am Xin, and I am not bad either. I am electrified and emit red light. I am sodium and have a strong temper. I get angry when I encounter acid or water. I am magnesium, I love beauty the most, and I love photography and fireworks. I am aluminum. I bathe in concentrated sulfuric acid at room temperature. I am silicon, black and gray in color, and I am surrounded by information components.

3. I am phosphorus, a harmful spirit. My name is on the list of highly toxic substances. I am sulfur, I have a long history, and I am best at precipitating metals. I am chlorine, color is yellow-green, I snatch the metal electrons. I am hydrogen, I have low activity, I will send out the neon purple light. I am potassium, add fire, superoxide takes charge. I am calcium, love for the body, bones and teeth. I am Bo, the transition comes, and I build the space shuttle.