Homework Help: electrons in atoms

Posted by Beth on Sunday, May 22, 2011 at 4:05pm.

What is the wavelength of the emitted photon, when the electron in the hydrogen atom makes a transition from the ni = 5 state to the nf = 3 state?

electrons in atoms - bobpursley, Sunday, May 22, 2011 at 4:09pm
Isn't there a standard formula for the energy change involved?

Then,

energy=Planck's constant* c/wavelength ?

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