Zinc
Transition Metal
Zinc (Zn) is a chemical element with atomic number 30, classified as a transition metal. At room temperature it is a solid. It was discovered in 1746 by Andreas Sigismund Marggraf.
Properties
- Atomic number
- 30
- Atomic mass
- 65.38 u
- Category
- Transition Metal
- Group
- 12
- Period
- 4
- Block
- d-block
- Electron configuration
- [Ar] 3d¹⁰ 4s²
- Phase at STP
- Solid
- Density
- 7.134 g/cm³
- Melting point
- 692.68 K (419.5 °C)
- Boiling point
- 1180 K (906.9 °C)
- Electronegativity
- 1.65
- Atomic radius
- 142 pm
- Ionization energy
- 9.394 eV
- Discovery
- 1746 · Andreas Sigismund Marggraf
Common uses
Galvanizing steel, batteries, sunscreen, dietary supplements
Did you know?
Prevents rust when coating steel and essential for immune system.