What Is the Binding Energy of an Electron in a Photosensitive

question 3

Multiple Choice

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 205 nm?

• A) 279 kJ/mol
• B) 584 kJ/mol
• C) 792 kJ/mol
• D) 1.71 \(\times\) 10¹⁹ kJ/mol
• E) 5.84 \(\times\) 10^-20 kJ/mol

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