1. Zinc is a chemical element with chemical symbol Zn, atomic number 30 and relative atomic mass 65.39. It is a light gray transition metal.

2. In the periodic table of chemical elements, it is located in the 4th period and Ⅱ b group. [1] Zinc is the fourth "common" metal, second only to iron, aluminum and copper (the most abundant top elements in the earth's crust are oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium, respectively).

Generally speaking, the appearance of zinc is silvery white, which plays an indelible role in the manufacture of modern industrial batteries and is a very important metal.

4. Zinc is not easy to burn in air, but it will emit strong white light in oxygen.

Discover history:

1, zinc was known by the Romans, but it was rarely used. It was first recognized as a metal in India. There is a zinc smelter in Zahoual, Rajasthan, and there is a large amount of zinc, which proves that the large-scale refining is from 1 100 to 1500.

2. In the 6th century, China carried out large-scale zinc smelting. The ship of the East India Company sank off the coast of Sweden on 1745. The cargo on board was zinc from China. The analysis of the recovered metal ingots proves that they are almost pure metals.

3. 1668, Flemish metallurgist P. Moras de Respour extracted zinc from zinc oxide, but Europe believed that zinc was discovered by German chemist Andreas Magraff in 1746, and he was indeed the first person to confirm that it was a new metal.