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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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