KnowraFranck–Hertz experimentLinked fromLinked fromThe 7 pages that link to Franck–Hertz experiment, each with the reason it gives.All 7Broader topic 2Related 5Bohr modelRelated: Its results provided experimental support for quantized atomic energy levels.Old quantum theoryRelated: It provided direct evidence for discrete atomic excitation energies assumed by early models.Atomic energy levelRelated: Its voltage-dependent energy losses provided direct evidence for quantized atomic excitation.Atomic physicsRelated: Its results supplied early evidence for quantized atomic energy levels.History of quantum mechanicsRelated: Its 1914 results provided direct evidence for discrete atomic energy levels.