13Al
Aluminium
Post-transition metal
Properties of Aluminium
- Atomic number (Z)
- 13
- Symbol
- Al
- Name
- Aluminium
- Atomic mass
- 26.982 u
- Period
- 3
- Group
- 13
- Family
- Boron group
- Classification
- Post-transition metal
- Electron configuration
- [Ne] 3s² 3p¹
About Aluminium
Aluminium is a chemical element with symbol Al and atomic number 13 (atomic mass of about 26.982 u). It is classified as a post-transition metal on the periodic table.
On the periodic table, Aluminium is located in period 3, in group 13, belonging to the boron group family. An element's position reveals trends in its properties, such as atomic radius, electronegativity and metallic character.
The electron configuration of Aluminium is [Ne] 3s² 3p¹, which determines how it forms chemical bonds and takes part in reactions.