Electron configuration for Argon (element 18). Orbital diagram

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Ar (Argon) is an element with position number 18 in the periodic table. Located in the III period. Melting point: -189.4 ℃. Density: 0.00166 g/cm³.

Electronic configuration of the Argon atom:
1s² 2s² 2p⁶ 3s² 3p⁶

Reduced electronic configuration Ar:
[Ne] 3s² 3p⁶

Below is the electronic diagram of the Argon atom

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

Valence electrons of Argon

The number of valence electrons in a Argon atom - 8.
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
p	3	1	0	+1/2
p	3	1	1	+1/2
p	3	1	-1	-1/2
p	3	1	0	-1/2
p	3	1	1	-1/2

Other elements

Electronic configurations of other elements

Chlorine (Cl) electron configuration
Potassium (K) electron configuration
Electronic configuration table

Argon electron configuration

Valence electrons of Argon

Electronic configurations of other elements