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# Draw and energy-level diagram that shows all energy levels from n=5 to n=1. Draw all possible emissions lines between these levels?

I supose you want the diagram for the hydrogen atom...

We can evaluate the position (in terms of energy) according to the formula: ##E=-13.6/n^2## in eletronvolts We get: (the spacing between the energy levels is approx. scaled!) Hope it helps.