When referring to the electronic (or periodic) settings are talking about description location of the electrons at the different levels (with sub-levels and orbital) of a given atom.
General Atomic model.
Configure means "order" or "accommodate", and electronic drift of "electron"; Thus,electron configuration is the orderly manner distribute the electrons in levels andsublevels of energy.
Scientifically, we say that it is the representation of the Schrödinger Atomic model ofquantum mechanics. This representation indicates the levels, sublevels and the orbitalelectrons occupying.
We must note that although Schrödinger model is accurate only for the hydrogenatom, to other atoms is applicable the same model by means of very goodapproximations.
To understand (display or graphed) map of electronic (or periodic) configuration isnecessary to review the following concepts.