Give your students targeted, high-quality practice with this Photoelectron Spectroscopy (PES) Worksheet, designed specifically to support mastery of Topic 1.6: Photoelectron Spectroscopy from the AP Chemistry Course and Exam Description (CED). This worksheet features 10 multi-part PES problems that help students analyze PES graphs, relate them to electron configurations, and understand atomic structure through data interpretation. Each question is crafted to reinforce key concepts, such as ioniz