Hydrogen energy-level degeneracy
= Hydrogen energy-level degeneracy
Neglecting spin, the hydrogen level with principal quantum number $n$ has degeneracy
$$
\sum_{\ell=0}^{n-1}(2\ell+1)=n^2.
$$
= Hydrogen energy-level degeneracy
Neglecting spin, the hydrogen level with principal quantum number $n$ has degeneracy
$$
\sum_{\ell=0}^{n-1}(2\ell+1)=n^2.
$$