C-03-Q184: For 3d and 4p, both have $(n + l) = 5$. Which is lower in energy?

C-03-Q184: For 3d and 4p, both have $(n + l) = 5$. Which is lower in energy? | প্রশ্ন করি

For 3d and 4p, both have (n+l)=5(n + l) = 5(n+l)=5. Which is lower in energy?