Assertion: cathode's electron | /r/CapableOf | lower their energy
Facets:
value: by occupying this orbital
type: MANNER
Source sentences:
text: At the negative electrode where you have produced a high electron potential via an external voltage source electrons are "pushed out" of the electrode, thereby reducing the oxidized species $\ce{Ox}$, because the electron energy level inside the electrode (Fermi Level) is higher than the energy level of the LUMO of $\ce{Ox}$ and the electrons can lower their energy by occupying this orbital - you have very reactive electrons so to speak.
text: The electron loses energy, which it releases as an X-ray photon.
text: The reason is the same: water and electrons can lower their energy this way.