13
Al
Aluminum
Aluminum
Aluminum (Al)
Post-transition Metals · Solid · Period 3 · Group 13
Element Properties
- Atomic Number
- 13
- Symbol
- Al
- Atomic Mass
- 26.9815
- Category
- Post-transition Metals
- Standard State
- Solid
- Period
- 3
- Group
- 13
- Electronegativity
- 1.61
- Atomic Radius
- 184
- Ionization Energy
- 5.99
- Electron Affinity
- 0.44
- Oxidation States
- +3
- Melting Point
- 933.437 K (660.29 °C)
- Boiling Point
- 2792 K (2518.85 °C)
- Density
- 2.7
- Electron Configuration
- [Ne]3s2 3p1
- Year Discovered
- Ancient
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Frequently asked questions
What is the atomic number of Aluminum?
The atomic number of Aluminum is 13, which equals the number of protons in its nucleus.
What is the atomic mass of Aluminum?
The atomic mass of Aluminum is approximately 26.9815 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Aluminum?
The electron configuration of Aluminum is [Ne]3s2 3p1.
Where is Aluminum in the periodic table?
Aluminum is located in period 3, group 13.
When was Aluminum discovered?
Aluminum has been known since antiquity.
Related elements
Same group
5
B
Boron
10.81
31
Ga
Gallium
69.723
49
In
Indium
114.818
81
Tl
Thallium
204.383
113
Nh
Nihonium
286.182