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19. The binding energy of electrons in a metal is 194 kJ/mole. Find the threshold frequency of the metal lএk5। x Imol T.022x10 -23 =aH xlo00J 6022 X1023 : 3.22x107 3.22x(027 6.626X 10-34 4.859643827X 10-8 4,86x108. 5.1 20. A laser shines violet light with a frequency of 714 THz onto the metal in the previous question, what is the kinetic energy of the ejected electrons? 21. How fast are the electrons traveling in m/s? (Assume the electron has a mass of 9.109x10-31 kg) (hint use KE = -mv? and solve for v) 2.

19. The binding energy of electrons in a metal is 194 kJ/mole. Find the threshold frequency of the metal lএk5। x Imol T.022x10 -23 =aH xlo00J 6022 X1023 : 3.22x107 3.22x(027 6.626X 10-34 4.859643827X 10-8 4,86x108. 5.1 20. A laser shines violet light with a frequency of 714 THz onto the metal in the previous question, what is the kinetic energy of the ejected electrons? 21. How fast are the electrons traveling in m/s? (Assume the electron has a mass of 9.109x10-31 kg) (hint use KE = -mv? and solve for v) 2.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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19. The binding energy of electrons in a metal is 194 kJ/mole. Find the threshold frequency of the metal lএk5। x Imol T.022x10 -23 =aH xlo00J 6022 X1023 : 3.22x107 3.22x(027 6.626X 10-34 4.859643827X 10-8 4,86x108. 5.1 20. A laser shines violet light with a frequency of 714 THz onto the metal in the previous question, what is the kinetic energy of the ejected electrons? 21. How fast are the electrons traveling in m/s? (Assume the electron has a mass of 9.109x10-31 kg) (hint use KE = -mv? and solve for v) 2.
Transcribed Image Text:19. The binding energy of electrons in a metal is 194 kJ/mole. Find the threshold frequency of the metal lএk5। x Imol T.022x10 -23 =aH xlo00J 6022 X1023 : 3.22x107 3.22x(027 6.626X 10-34 4.859643827X 10-8 4,86x108. 5.1 20. A laser shines violet light with a frequency of 714 THz onto the metal in the previous question, what is the kinetic energy of the ejected electrons? 21. How fast are the electrons traveling in m/s? (Assume the electron has a mass of 9.109x10-31 kg) (hint use KE = -mv? and solve for v) 2.
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