13Al
Element 13
Aluminium
Post-transition metals
Aluminium (or aluminum; see different endings) is a chemical element in the boron group with symbol Al and atomic number 13.
Key data
- Atomic number
- 13
- Atomic mass
- 26.982 u
- Group / Period
- 13 / 3
- Block
- p-block
- Phase at STP
- Solid
- Density
- 2.7 g/cm³
- Melting point
- 660.3 °C
- Boiling point
- 2469.8 °C
- Electron configuration
- [Ne] 3s2 3p1
Common uses
- •Soda cans
- •Aircraft frames
- •Power lines
Discovery
Year: 1825
Named by: Humphry Davy
Frequently asked questions
What is the atomic number of Aluminium?
Aluminium has atomic number 13. Its symbol is Al and its atomic mass is 26.982 u.
What category of element is Aluminium?
Aluminium is classified as post-transition metals. It sits in group 13, period 3 of the periodic table.
What is Aluminium used for?
Common uses of Aluminium include: Soda cans, Aircraft frames, Power lines.
When was Aluminium discovered?
Aluminium was discovered in 1825.
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