Determine the Longest Wavelength of Light Required to Remove an Electron

question 20

Multiple Choice

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal,if the binding energy for an electron in K is 1.76 × 10³ kJ/mol.

• A) 147 nm
• B) 68.0 nm
• C) 113 nm
• D) 885 nm
• E) 387 nm

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