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:
Saudi Arabian Oil
Refers to the extensive petroleum reserves located in Saudi Arabia, which play a crucial role in the global oil industry and the country's economy.
Kuwait
A country located in the Middle East, at the head of the Persian Gulf, known for its significant petroleum reserves and strategic regional significance.
1980 Presidential
Refers to the presidential election held in 1980, in which Republican Ronald Reagan defeated incumbent Democrat Jimmy Carter, marking a significant political shift in the United States.
Congressional Elections
The process through which members of the United States Congress (both the House of Representatives and the Senate) are elected by voters, typically held every two years.
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