Electron configuration for Aluminum (element 13). Orbital diagram

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Al (Aluminum) is an element with position number 13 in the periodic table. Located in the III period. Melting point: 660.5 ℃. Density: 2.7 g/cm³.

Electronic configuration of the Aluminum atom:
1s² 2s² 2p⁶ 3s² 3p¹

Reduced electronic configuration Al:
[Ne] 3s² 3p¹

Below is the electronic diagram of the Aluminum atom

Distribution of electrons over energy levels in the Al atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 3

Distribution of electrons in the Aluminum

Valence electrons of Aluminum

The number of valence electrons in a Aluminum atom - 3.
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )

Orbital	N	L	M	S
s	3	0	0	+1/2
s	3	0	0	-1/2
p	3	1	-1	+1/2

Oxidation states of Aluminum: +3

Other elements

Electronic configurations of other elements

Magnesium (Mg) electron configuration
Silicon (Si) electron configuration
Electronic configuration table

Aluminum electron configuration

Valence electrons of Aluminum

Electronic configurations of other elements