The work function of potassium is 3.68 3 10219 J. (a) What is the minimum frequency of light needed to eject electrons from the metal? (b) Calculate the kinetic energy of the ejected electrons when light of frequency equal to 8.62 3 1014 s21 is used for irradiation

# The work function of potassium is 3.68 3 10219 J. (a) What

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## Solution for problem 7.21 Chapter 7

Chemistry: A Molecular Approach | 3rd Edition

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The work function of potassium is 3.68 3 10219 J. (a) What