28_InstSolManual_PDF_Part6

28_InstSolManual_PDF_Part6 - 28-6 Chapter 28 (b) Ei 2 Ef 5...

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(b) and Reflect: The transition energy is smaller than the transition energy so the wave- length is longer. In fact, this wavelength is longer than for any transition that ends in the state. 28.22. Set Up: The ground state has Solve: (a) (b) (c) (d) The minimum energy of the atom when the electron is no longer bound is (e) This photon is in the ultraviolet. 28.23. Set Up: Section 28.3 calculates that and Solve: (a) so and (b) so and (c) Reflect: As n increases, r increases, decreases and E becomes less negative. 28.24. Set Up: If an atom gains energy in a transition, conservation of energy requires that a photon is absorbed. If the atom loses energy in a transition, a photon is emitted. The transition energy of the atom equals the energy of the photon that is absorbed or emitted. Solve: (a) so and In the to transition the atom loses energy and a photon is emitted. (b) so 28.25. Set Up: For a hydrogen atom where is the magnitude of the energy change for the atom and is the wavelength of the photon that is absorbed or emitted.
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