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2 cards from this section. Quick, good the night before a test.
What does PES stand for?
Think about what the technique is analyzing.
What are the two main types of photon sources used in PES?
Recall the types of radiation that can eject electrons.
What principle does Photoelectron Spectroscopy rely on?
Recall Einstein's contribution to physics regarding light and electrons.
In a PES spectrum, which electrons are represented by the peaks furthest to the left?
Think about which electrons are closest to the nucleus.
A sample of a gas results in a PES spectrum with two distinct peaks, one at 10 eV and another at 25 eV binding energy. Identify the likely electron subshells responsible for each peak and describe any implications for the atomic structure.
Think about which electrons are typically found further from the nucleus.
If the photon energy used in PES is 40 eV and the kinetic energy of a certain emitted electron is 10 eV, what is the binding energy of that electron?
Apply the PES equation E_photon = BE + KE.
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