Asked by Kamila

A hydrogen atom electron in an excited state with n = 7 drops to a lower energy state with n = 3. What is the wavelength of the light emitted in this transition
Answered by DrBob222
1/wavelength = R(1/3^2 - 1/7^2)
R = Rydberg constant = 1.097373E7
wavelength is in m.
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