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Light is emitted from a hydrogen lamp when electrons relax from a higher energy state ( ninitial ) to a lower energy state ( nfnal ). For this problem, assume the light emitted from a hydrogen lamp is due to a relaxation from an n = 5 →n = 2 energy state. When photons of this light hit a metal surface, electrons are ejected with a kinetic energy of 17.18 kJ/mol. What is the binding energy of the electrons in units of kJ/mol? Hint: Recall that KE = |Ephoton] – 4 Show your work and write your answer on the WRITTEN TEMPLATE. Include units and report answer with the appropriate number of significant figures. Circle your final answer.

Light is emitted from a hydrogen lamp when electrons relax from a higher energy state ( ninitial ) to a lower energy state ( nfnal ). For this problem, assume the light emitted from a hydrogen lamp is due to a relaxation from an n = 5 →n = 2 energy state. When photons of this light hit a metal surface, electrons are ejected with a kinetic energy of 17.18 kJ/mol. What is the binding energy of the electrons in units of kJ/mol? Hint: Recall that KE = |Ephoton] – 4 Show your work and write your answer on the WRITTEN TEMPLATE. Include units and report answer with the appropriate number of significant figures. Circle your final answer.

Chemistry: The Molecular Science
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 114QRT
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Light is emitted from a hydrogen lamp when electrons relax from a higher energy state ( ninitial ) to a lower energy state ( nfinal ). For this problem, assume the light emitted from a hydrogen lamp is due to a relaxation from ann = 5 II → n = 2 energy state. When photons of this light hit a metal surface, electrons are ejected with a kinetic energy of 17.18 kJ/mol. What is the binding energy of the electrons in units of kJ/mol? Hint: Recall that KE = |Ephoton| – 4 Show your work and write your answer on the WRITTEN TEMPLATE. Include units and report answer with the appropriate number of significant figures. Circle your final answer.
Transcribed Image Text:Light is emitted from a hydrogen lamp when electrons relax from a higher energy state ( ninitial ) to a lower energy state ( nfinal ). For this problem, assume the light emitted from a hydrogen lamp is due to a relaxation from ann = 5 II → n = 2 energy state. When photons of this light hit a metal surface, electrons are ejected with a kinetic energy of 17.18 kJ/mol. What is the binding energy of the electrons in units of kJ/mol? Hint: Recall that KE = |Ephoton| – 4 Show your work and write your answer on the WRITTEN TEMPLATE. Include units and report answer with the appropriate number of significant figures. Circle your final answer.
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