We’re being asked to calculate for the wavelength of light emitted by an electron to transition from n=5 to n = 2.
We’re going to use the Balmer Equation which relates wavelengths to a photon’s electronic transitions.
λ = wavelength, m
R = Rydberg constant = 1.097x107 m-1
Z = atomic number of the element
ninitial = initial energy level
nfinal = final energy level
Calculate the wavelength of light emitted (λ):
What is the wavelength (in nm) of light emitted from a hydrogen atom when an electron falls from the n = 5 to n = 2 energy level?
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