How to compute the electron configuration of an (electrically neutral) atom ?

So when given the atom number how does noe compute the electron configuration ?

I know the sum of electrons must equal the atom number.

I also know the first shells fill up as 2n^2.

I do not know how to compute quantum numbers when given the atom number.

How to compute the electron configuration of an (electrically neutral) atom ?

So when given the atom number how does one compute the electron configuration ?

I know the sum of electrons must equal the atomic number.

I also know the first shells fill up as $2n^2$.

I do not know how to compute quantum numbers when given the atom number.