Question

which pes graph best represents the element oxygen (o)?

Explanation:

Oxygen has an electron configuration of \(1s^{2}2s^{2}2p^{4}\). In PES (Photoelectron Spectroscopy) graphs, the peaks correspond to different sub - shells. The \(1s\) sub - shell has the highest binding energy. For oxygen, the binding energy of \(1s\) electrons is around \(52.6\) MJ/mol (this value is based on the general trends and known data for oxygen in PES). Looking at the options:

• Option A: The highest binding energy value (if we assume the values in the graph) does not match the expected \(1s\) binding energy for oxygen.
• Option B: The highest binding energy value (if we assume the values in the graph) does not match the expected \(1s\) binding energy for oxygen.
• Option C: The highest binding energy value (if we assume the values in the graph) does not match the expected \(1s\) binding energy for oxygen.
• Option D: The highest binding energy value (assuming the values in the graph) is closest to the expected \(1s\) binding energy for oxygen.

Answer:

D