13 Al
Post-transition metal
Aluminum
Most abundant metal in the crust.
Properties of Aluminum
- Atomic number (Z)
- 13
- Symbol
- Al
- Atomic mass
- 26.982 g/mol
- Category
- Post-transition metal
- Group
- 13
- Period
- 3
- Electron configuration
- [Ne] 3s² 3p¹
- Electronegativity (Pauling)
- 1.61
- Atomic radius
- 118 pm
- First ionization energy
- 577 kJ/mol
- Melting point
- 933.47 K (660.3 °C)
- Boiling point
- 2792 K (2518.8 °C)
- Density
- 2.698 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1825