1, potassium (k): used to prepare potash fertilizer and chemical fertilizer, and used to supplement the nutrients of grassland and crops.
2. Sodium (Na): It is widely used to prepare sodium salts, such as table salt, and industries such as glass, soap and grease.
3. Calcium (Ca): It is usually used to make building materials such as lime, cement and glass, and also used as nutritional supplements and food additives.
4. Magnesium (Mg): used to make magnesium alloys, which is an important material in aviation and automobile industry, and also used as a nutritional supplement and medicine.
5. Zinc (Zn): It is widely used to prepare zinc alloys, storage batteries, preservatives, etc. And nutritional supplements and medicines.
6. Aluminum (Al): It is used to make aluminum alloys and is an important material for airplanes, automobiles and construction.
7. Iron (Fe): widely used in steelmaking, it is an indispensable material in construction, manufacturing and transportation.
8. Manganese: It is used to make steel and manganese alloys, and is an important raw material for industries such as batteries, fertilizers and glass.
9. Nickel (Ni): It is widely used to prepare nickel alloys, such as stainless steel and alloy steel, and is widely used in aviation, medical equipment, chemical industry and other industries.
10, tin (Sn): mainly used for making tin alloys, such as bronze and solder, and also used for packaging canned food.
1 1, lead (Pb): used to make lead storage batteries, bullets, radiation protection materials, etc. , also used in chemical industry and construction.
12, hydrogen (h): It is widely used in petroleum processing, hydrogen energy, chemical synthesis and other fields, and is an important energy source and chemical raw material.
13, copper (Cu): used to make wires, pipes, electrical appliances, coins, etc. , but also used in chemical industry, construction, medical equipment and other fields.
14, Mercury (Hg): Due to its toxicity, the use of mercury is limited, but it is still used in thermometers, gas discharge lamps and scientific experiments.
15, silver (Ag): used for making silverware, jewelry, photographic film, etc. , also used in electronics, medical care, solar photovoltaic and other fields.
Metal migration reaction
1. Reaction of metals with acids: Highly active metals can react with acids to generate corresponding salts and hydrogen. For example, the reaction equation of sodium reacting with hydrochloric acid to generate sodium chloride and hydrogen is 2na+2hcl->; 2 sodium chloride+H2.
2. Reaction of metals with water: Some highly active metals can react with water to generate metal hydroxide and hydrogen. For example, the reaction equation of sodium reacting with water to generate sodium hydroxide and hydrogen is 2na+2h2o->; 2 sodium hydroxide+H2.