The electronic distribution of the element is going to tell us how the electrons are distributed all across the atom.
There are some concepts to check:
Energy levels: They are numbered from 1 to 7 and correspond to the element period.
In each energy level, there are 4 sub energy levels: s, p, d, and f.
The quantic number l refers to the angular position of the angle that forms the element. The number of electrons present on this orbital is equal to the addition of the last energy level, in this case, 2.
The electronic configuration for this element is:
[tex]1s^2\text{ 2s}^2\text{ 2p}^6[/tex]Then, the number of electrons in the last energy level is 8.