Linked from

The 24 pages that link to Energy level, each with the reason it gives.

• Bohr modelNarrower topic: Each permitted orbit corresponds to a specific atomic energy level.

• Population inversionNarrower topic: Inversion compares how many particles occupy two such levels.

• Electronic transitionNarrower topic: Transitions connect the quantized energies whose differences govern exchanged energy.

• Gas laserNarrower topic: Transitions between gas-particle energy levels determine which laser wavelengths are possible.