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For the hydrogen atom where Rh=2.18*10^-18 J, the wavelength of the transition from the ground state to the n=3 state is_____?

  • chemistry -

    First I don't think RH = 2.180E-18 J.
    RH = 1.09737E7
    1/wavelength = 1.09737E7(1/1 - 1/9) and solve for wavelength in meters.
    If you want to use that 2.18E-18 J number, that can be done this way.
    delta E = 2.180E-18J x (1/1 - 1/9)
    Then E = hc/wavelength and solve for wavelength.

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