On what factors does the energy of an atom with more than one electron (multi-electron atom) depend?

(N/A) For a multi-electron atom,the energy of an orbital depends on both the principal quantum number $(n)$ and the azimuthal quantum number $(l)$. The energy increases with an increase in the value of $(n + l)$. If two orbitals have the same $(n + l)$ value,the orbital with the lower value of $n$ has lower energy.