Asked by Amy

Find the wavelength in nanometers of a photon emitted by a hydrogen atom decaying from the 3s state to the 2s state.

Answers

Answered by DrBob222

delta E = 2.18E-18 J(1/2^2 - 1/3^2), then
dE = hc/w. h is Planck's constant. c is speed of light in m/s. w is wavelength in m. Convert to nm. Post your work if you get stuck.
Answered by Amy
Thank you! It makes sense now.
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