1s22s22p6
The shorthand electron configuration of magnesium is [Ne]3s2.
Sodium has the configuration Ne 3s2 . Sodium is group-1 element.
Argon does not have an electric configuration.
[Ne] 3s2 3p6
[Ne] 3s2 3p2
The electron configuration of sulfur is [Ne]3s2.3p4.
The electron configuration of aluminium is [Ne]3s2.3p1.
The noble gas configuration of magnesium is [Ne] 3s^2. This indicates that magnesium has the same electron configuration as the nearest noble gas, neon, with an outer shell containing 2 electrons in the 3s orbital.
The noble gas electron configuration of chloride ion (Cl-) is [Ne]3s^23p^6, which is equivalent to the electron configuration of argon. This means that chloride has gained an extra electron compared to neutral chlorine, resulting in a full outer electron shell and a stable, closed-shell configuration.
Sodium has the configuration Ne 3s2 . Sodium is group-1 element.
The configuration Ne 3s2 3p6 represents the electron configuration of the noble gas neon, which has 10 electrons in total.
The abbreviated electron configuration for argon is [Ne] 3s^2 3p^6. The [Ne] represents the electron configuration of the noble gas neon, which has the same electron configuration as the inner electrons of argon.