Mendeleev فارسی

Aluminum (Al) – Element 13 of the periodic table

Aluminum (symbol Al) is element number 13 of the periodic table and belongs to the “Metal” category. Its atomic mass is about 26.982, and its phase under standard conditions is Solid. This element sits in period 3 and group 13 of the periodic table, and its electrons are arranged in shells of 2, 8, 3. The short electron configuration of Aluminum is [Ne] 3s² 3p¹. Known uses of Aluminum include Beverage cans, Airplanes and Electrical wiring.

View in the interactive periodic tableAsk the AI assistant

Properties of Aluminum

Atomic number
13
Chemical symbol
Al
Atomic mass
26.982
Category
Metal
Period
3
Group
13
Phase
Solid
Protons
13
Electrons
13
Neutrons (approx.)
14
Electron shells
2, 8, 3
Outer-shell electrons
3
Discovered
Hans Christian Ørsted (1825)

Electron configuration of Aluminum

The electron configuration of Aluminum (Al), with 13 electrons, is shown below. The last shell (shell 3) is highlighted:

Full configuration
1s² 2s² 2p⁶ 3s² 3p¹
Short configuration
[Ne] 3s² 3p¹
Last shell
3s² 3p¹

What is electron configuration and how is it written?

Electron shells of Aluminum

Distribution of 13 electrons of Aluminum across shells K to M:

  1. K2
  2. L8
  3. M3

What is a metal?

The p-block metals (the post-transition metals) are usually softer than the transition metals and have lower melting points.

Uses of Aluminum

Frequently asked questions about Aluminum

What is the atomic number of Aluminum?

The atomic number of Aluminum (Al) is 13; that is, every atom of it has 13 protons.

What is the electron configuration of Aluminum?

The electron configuration of Aluminum (Al) is 1s² 2s² 2p⁶ 3s² 3p¹; in short form it is [Ne] 3s² 3p¹, and its last shell is 3s² 3p¹.

What is the chemical symbol of Aluminum?

The chemical symbol of Aluminum is Al.

Where is Aluminum located in the periodic table?

Aluminum is located in period 3 and group 13 and belongs to the “Metal” category.

What is the atomic mass of Aluminum?

The atomic mass of Aluminum is about 26.982 (atomic mass units).

What is the phase of Aluminum under normal conditions?

The phase of Aluminum under standard conditions is Solid.

What are the uses of Aluminum?

Uses of Aluminum include Beverage cans, Airplanes and Electrical wiring.

Who discovered Aluminum?

Aluminum was discovered by Hans Christian Ørsted in 1825.

Elements in the same category as Aluminum (Metal)

Gallium (Ga)Indium (In)Tin (Sn)Thallium (Tl)Lead (Pb)Bismuth (Bi)Polonium (Po)Nihonium (Nh)Flerovium (Fl)Moscovium (Mc)Livermorium (Lv)

See all Post-transition metals

Aluminum’s group 13 neighbours

Boron (B)Gallium (Ga)Indium (In)Thallium (Tl)Nihonium (Nh)

Group 13 of the periodic table