Question

What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit? What is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is -2.18 x 10^(-11) ergs.
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Answer 1

Question:

What is the energy in joules, required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit? What is the wavelength of the light emitted when the electron returns to the ground state? The ground state electron energy is -2.18 x 10^(-11) ergs.

answer:

The energy in the ground state is -13.6 ev and that of 3rd orbit is -13.6/9 = -1.51 ev , so to excite an electron from from state to 3rd Orbit we require -1.51-(-13.6) =12.08ev