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to measure the binding energy of electrons in molecules and solids, photoelectron spectroscopy utilizes the photoelectric effect, by measuring the kinetic energy, wavelength, and binding energy. one variant of photoelectron spectroscopy is x-ray photoelectron spectroscopy. if the x-ray wavelength is 0.2nm, calculate the velocity of electrons emitted from molecules in which the binding energies are 10ev, 100ev, and 500ev

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