13
Al
26.982
Aluminium (Al)
Element 13 · Period 3 · Group 13
post-transition
solid at room temp
p-block
About Aluminium
Most abundant metal in Earth's crust. Lightweight, corrosion-resistant. Widely used in packaging and aerospace.
Physical Properties
Atomic Mass
26.982 u
State at 25°C
Solid
Melting Point
660.32 °C
Boiling Point
2519 °C
Density
2.7 g/cm³
Magnetism
Paramagnetic
Atomic Properties
Electron Configuration
[Ne] 3s² 3p¹
Electron Shells
2, 8, 3
Electronegativity
1.61
Atomic Radius
118 pm
Ionization Energy
577 kJ/mol
Oxidation States
+3
Discovery & History
Discovered By
Hans Christian Ørsted
Discovery Year
1825
Named By
Humphry Davy
Name origin: Latin: alumen (alum)
Frequently Asked Questions
- Is Aluminium a metal, nonmetal, or metalloid?
- Aluminium is classified as a post-transition.
- What state is Aluminium in at room temperature?
- Aluminium is a solid at standard room temperature (25°C).
- What is the atomic mass of Aluminium?
- Aluminium has an atomic mass of 26.982 atomic mass units (u).
- Who discovered Aluminium?
- Aluminium was discovered by Hans Christian Ørsted in 1825.
- Where is Aluminium on the periodic table?
- Aluminium is element number 13, located in period 3 and group 13.