Write the electronic configuration of argon

Definition of electronic configuration.

• The arrangement of electrons in various energy levels(or shells)of an element is called electronic configuration.
• The maximum number of electrons which can be accommodated in any shell of an atom is given by 2n², here n is the number of shells or energy levels.

The electronic configuration of argon as given below.

Argon($\mathrm{Ar}$) - Atomic number = 18

Electronic configuration =2,8,8