The photoelectric work function for a certain metal is 221.8 kJ/mol. If the metal absorbs a photon with a wavelength of 5.0 x 102 nm, and an electron is ejected, what is the kinetic energy of the ejected electron? (A) 4.0 x 10–19 J (B) 3.8 x 10–19 J (C) 7.7 x 10–20 J (D) 2.9 x 10–20 J
The photoelectric work function for a certain metal is 221.8 kJ/mol. If the metal absorbs a photon with a wavelength of 5.0 x 102 nm, and an electron is ejected, what is the kinetic energy of the ejected electron? (A) 4.0 x 10–19 J (B) 3.8 x 10–19 J (C) 7.7 x 10–20 J (D) 2.9 x 10–20 J
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter5: Electron Configurations And The Periodic Table
Section: Chapter Questions
Problem 24QRT: A photoemissive material has a threshold energy, Emin = 5 1019 J. Will 300. nm radiation eject...
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- The photoelectric work function for a certain metal is 221.8 kJ/mol. If the metal absorbs a photon with a wavelength of 5.0 x 102 nm, and an electron is ejected, what is the kinetic energy of the ejected electron?
(A) 4.0 x 10–19 J
(B) 3.8 x 10–19 J
(C) 7.7 x 10–20 J
(D) 2.9 x 10–20 J
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