Question

Answer the following questions using the Bohr model of the hydrogen atom.

a) A hydrogen atom is the n = 3 excited state when its electron absorbs a photon of energy 4.40 eV. Draw a diagram roughly to scale, of relevant energy levels for this situation. Make sure to show and label the initial energy of the H atom in the n=3 state, the energy level at which this atom loses its electron, and kinetic energy of the electron.

b)What is the kinetic energy of the resulting free electron? (eV)

c) If instead of absorbing a photon, the atom in the n=3 level de-excites to the ground state (n=1), what is the wavelength (in nm) and energy (in e V) of the emitted photon? d) What would immediately happen to both the photon and the electron if an H atom originally in the ground state is illuminated by a photon of energy: i)10.2 eV, ii) 10.4 eV and iii) 15.0 eV?

Answer 1

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