This is just a short question about angular momentum quantum numbers, not a homework problem. So in my textbook it states that the letters s,p,d,f correspond to the angular momentum quantum numbers 0,1,2,3 respectively. But what if l = 5? Then what letter to use? The book does say that n can be up to infinity, which means l can also be up to infinity? Therefore l = 5 should be possible but what's the letter to represent it in the electronic configurations?