Question

What is the binding energy of an electron in a photosensitive metal (in kJ/mol) if the longest wavelength of light that can eject electrons from the metal is 198 nm?
A.279 kJ/mol
B.604 kJ/mol
C.792 kJ/mol
D.1.51 1012 kJ/mol
E.6.04 10-20 kJ/mol

Answer

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