Figure Q29.20 shows the energy levels of a hypothetical

Chapter 29, Problem 19CQ

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Problem 19CQ

Figure Q29.20 shows the energy levels of a hypothetical atom.

a. What minimum kinetic energy (in eV) must an electron have to collisionally excite this atom and cause the emission of a 620 nm photon? Explain.

b. Can an electron with K = 6 eV cause the emission of 620 nm light? If so, what is the final kinetic energy of the electron? If not, why not?

c. Can a 6 eV photon cause the emission of 620 nm light from this atom? Why or why not?

d. Can a 7 eV photon cause the emission of 620 nm light from this atom? Why or why not?

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