Relative atomic weight
Relative atomic weight 65.409 (generally 65 for junior high school)
The properties of zinc
Zinc is a blue-white metal. When the temperature reaches 225°C, zinc oxidation is intense. Zinc is easily soluble in acid and can easily replace gold, silver, copper, etc. from the solution. Zinc exists in the state of sulfide in nature. The main zinc-bearing mineral is sphalerite. There are also a small amount of oxidized ore, such as siderite, siderite and hemimorphite.
Atomic radius
Atomic radius (calculated value) 135 (142) pm
Covalent radius 131 pm
Figure 6 Alkaline zinc manganese battery
Figure 6 Alkaline zinc manganese battery
Van der Waals radius 139 pm
Content (ppm)
The content of elements in the sun: 2
The content of elements in seawater: 0.00005 (trace elements)
Content in the crust: 75 (trace elements)
Crystal structure: close-packed hexagonal
Electron arrangement outside the nucleus: 2, 8, 18, 2
Number of nuclear charges: 30
Oxidation state
Main oxidation state: +2
Other: +1