Homework Help: chemistry

Posted by Dave on Friday, September 3, 2010 at 7:51pm.

The electron in the n = 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?

chemistry - DrBob222, Friday, September 3, 2010 at 8:36pm
1/wavelength = (2.180 x 10^-18/hc)x(1/n1^2-1/n2^2)
n1 = unknown
n2 = 5
chemistry - Dave, Friday, September 3, 2010 at 10:41pm
Thank you, sir.
chemistry - sarah, Sunday, September 5, 2010 at 9:52am
did you find that electron actually moved or did it stay in place?
chemistry - T, Monday, November 15, 2010 at 10:49am
I don't know
chemistry - Tyler, Wednesday, January 19, 2011 at 8:59pm
A hydrogen Atom makes a transition between two energy states and emits a photon with a wavelength of 434.2nm. What is the frequency? Does anyone know how to do this?
chemistry - Anonymous, Friday, January 21, 2011 at 1:20pm
3*10^8 / 4.342*10^-7 = frequency (units are seconds^-1)

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