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what is the wavelength of a photon emitted during a transition from the initial state(ni)=5 state to the final state(nf)=2 state in the hydrogen atom?

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masre man

  1. 1/wavelength = R[1(2)^2 - (1/5)^2]
    R is the Rydberg constant. You can find that on Google. It's about 1.097E7
    Post your work if you get stuck.

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    DrBob222

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