I know of four or five quantum levels of hydrogen. My question is: How many quantum levels are there (of hydrogen) and is there any math that can be used to define these levels and predict other possible levels? I assume that each element has a specific number of quantum levels and that not all elements have the same number of quantum levels. Is that true? Or do quantum levels expand out to infinity. If so, how is this been verified? If I've asked another stupid, embarrassing question you can email me personally at email@example.com. I have another question after this one is answered.