Unit 1.6: Photoelectron Spectroscopy
Identify an element based on its PES (Photoelectron Spectroscopy).
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A PES spectrum shows peaks consistent with 1s² 2s² 2p⁶ 3s¹. What is
the element?
Label the peaks on a PES spectrum with the corresponding subshell.
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In a PES spectrum of oxygen, label which peaks correspond to 1s, 2s,
and 2p electrons.
Compare heights of peaks in the spectrum to determine the number of
electrons in a subshell.
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If the 2p peak is three times the height of the 2s peak in a PES
spectrum, how many electrons are in each subshell?
Explain differences between PES spectra of two atoms/ions.
- How would the PES spectrum of Na differ from that of Na⁺?