Assertion: ion's electron | /r/CapableOf | emit photon
Facets:
Source sentences:
text: the number n. An electron dropping to a lower orbit emits a photon equal to the energy difference between the orbits.
text: Finally let π(E,E')dE' be the probability per unit path length for an electron of energy E to emit a photon with energy between E' and E'+dE'.