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OpenStudy (anonymous):

The work function for Cr metal is 652.7 kJ/mol. Find: a. The energy (in J) needed to remove an electron from one atom of Cr. b. The minimum energy (in J) a photon must have to ionize Cr. c. The maximum wavelength (in nm) of light that can ionize Cr. d. Can light at 255 nm ionize chromium?

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