-19 20. A polished metal surface requires 1.75 × 10"1º J to remove electrons via the photoelectric effect. When photons with a wavelength of 237 nm strike the surface, what is the speed of the ejected electron? mẹ= 9.11 × 10-3' kg a. 1.36 x 10° m/s b. 3.84 x 10° m/s c. 1.21 × 10° m/s d. 1.48 x 10° m/s e. none of the above

-19 20. A polished metal surface requires 1.75 × 10"1º J to remove electrons via the photoelectric effect. When photons with a wavelength of 237 nm strike the surface, what is the speed of the ejected electron? mẹ= 9.11 × 10-3' kg a. 1.36 x 10° m/s b. 3.84 x 10° m/s c. 1.21 × 10° m/s d. 1.48 x 10° m/s e. none of the above

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 22QRT

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