Linked from
The 15 pages that link to Excited state, each with the reason it gives.
Energy levelRelated: Excited states occupy levels above the ground state.
Quantum yieldRelated: Absorbed photons populate excited states from which measured outcomes compete.
Atomic energy levelRelated: Atoms occupy these higher levels after absorbing energy.
Singlet oxygenNarrower topic: Singlet oxygen is a specific excited state of the oxygen molecule.
Lyman seriesRelated: Each Lyman line begins with hydrogen in one of these higher states.