Based on the following data and graph, indicate which metal requires the shortest wavelength photons to eject photoelectrons.Work functions are in J *10-19. 
Definitions:
John Kotter
An author and professor known for his work on leadership and change management, particularly his 8-step process for leading change.
Leadership
The process of guiding and directing the behavior of people in the work environment.
Management
The process of dealing with or controlling things or people, including planning, organizing, directing, and controlling resources to achieve organizational goals.
Autocratic Style
A style of leadership in which the leader uses strong, directive actions to control the rules, regulations, activities, and relationships in the work environment.
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