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 299.0 nm?
A) 279 kJ/mol
B) 400 kJ/mol
C) 792 kJ/mol
D) 2.50 × 1019 kJ/mol
E) 4.00 × 10-20 kJ/mol
Correct Answer:
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