Answer : Electron configuration of chlorine
It can be written as 1s22s22p63s23p5 or as [Ne]3s23p5
Electronic configuration is a symbolic notation that describes the manner in which the electrons of an element’s atoms are distributed over various atomic orbitals. It is used to describe the electronic configuration of an element.
There are two names for the same thing: the electronic structure of an element and the electronic configuration of an element.
A standardised notation is used when writing electron configurations. This notation requires that the energy level and the type of orbital be written first, followed by the number of electrons present in the orbital written in superscript.