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jtbell

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So the n=1 series is all the spectral lines emitted by electrons as they fall back to the 1st energy shell. Why do they all emit UV radiation? If the energy emitted is the energy difference between the 2 energy levels then it makes sense that Lyman lines are higher in energy than Balmer lines but the photon emitted by an electron dropping from n=6 back to n=2 would he higher in energy than say n=2 back to n=1 wouldn't it?

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phyzguy

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but the photon emitted by an electron dropping from n=6 back to n=2 would he higher in energy than say n=2 back to n=1 wouldn't it?

No, it wouldn't, because the levels aren't equally spaced. Try plugging in the numbers. The energy of an n=2 to n=1 photon is 13.6eV(1/1-1/4) = 10.2eV. The energy of an n=6 to n=2 photon is 13.6eV(1/4-1/36) = 3.02eV.

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Ah right, that explains it. Thanks a lot!

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