Revise later
SpaceTo flip
If confident
All Flashcards
Differentiate between binding energy and kinetic energy in PES.
Binding Energy: Energy required to remove an electron. Kinetic Energy: Energy of the ejected electron after removal.
What is the effect of shining light with a frequency below the threshold frequency on a metal?
No electrons are ejected.
What is the effect of increasing the intensity of light with a frequency above the threshold frequency in the photoelectric effect?
More electrons are ejected, but their kinetic energy remains the same.
What does a higher binding energy in a PES spectrum indicate about an electron?
The electron is closer to the nucleus.
What are the three main steps of Photoelectron Spectroscopy (PES)?
1. Shine light on a sample. 2. Electrons are ejected if the light has enough energy. 3. Measure the kinetic energy of the ejected electrons.