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Chapter 6: Q22DQ (page 1401)
An atom in its ground level absorbs a photon with energy equal to the K absorption edge. Does absorbing this photon ionize this atom? Explain.
Yes, absorbing this photon ionize this atom.
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In a photoelectric-effect experiment, which of the following will increase the maximum kinetic energy of the photoelectrons? (a) Use light of greater intensity; (b) use light of higher frequency; (c) use light of longer wavelength; (d) use a metal surface with a larger work function. In each case justify your answer.
The assumptions of the free-electron model of metals may seem contrary to reason, since electrons exert powerfulelectric forces on each other. Give some reasons why these assumptions actually make physical sense.
Van der Waals bonds occur in many molecules, but hydrogen bonds occur only with materials that contain hydrogen. Why is this type of bond unique to hydrogen?
Why do you think the development of Newtonian mechanics preceded the more refined relativistic mechanics by so many years?
Individual atoms have discrete energy levels, but certain solids (which are made up of only individual atoms) show energy bands and gaps. What causes the solids to behave so differently from the atoms of which they are composed?
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