- #1
oldspice1212
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Homework Statement
Using the energies, determine from which initial energy level (n) the electrons decayed when it emitted photons at each of these wavelengths.
Homework Equations
[itex]E = - \frac{ me^4 }{ 8\epsilon_0^2h^2 }\frac{ 1 }{ n^2 }[/itex]
[itex]Delta E = E_f-E_i= - \frac{ me^4 }{ 8\epsilon_0^2h^2 }\left( \frac{ 1 }{ n^2_f}-\frac{ 1 }{ n^2_i } \right)[/itex]
The Attempt at a Solution
I have the energy and wavelengths for this question but I'm not exactly sure what formula to use, this is for an hydrogen atom, so that's where my question lies but I have two equations (above)I just need guidance on which one to use.