An X-ray photon of wavelength 0.989 nm strikes a surface. The emitted electron has a

Chapter 7, Problem 78

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An X-ray photon of wavelength 0.989 nm strikes a surface. The emitted electron has a kinetic energy of 969 eV. What is the binding energy of the electron in kJ>mol? 3KE = 1 2 mv2 ; 1 electron volt 1eV2 = 1.602 * 10-19 J4

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