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The figure shows the energy levels for an electron in a finite potential energy well. If an electron in the n = 2 state absorbs a photon of
wavelength 2.0 nm, what happens to the electron?
Energy (eV)
450
Nonquantized
-Top of well
E = 398 eV
E = 233 eV
E = 106 eV
E₁ = 27 eV
O It makes a transition to the n = 3 state.
O It makes a transition to the n = 4 state.
O It escapes the well with a kinetic energy of 280 eV.

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