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The Franck–Hertz experiment was the first electrical measurement to clearly show the quantum nature of atoms, and thus "transformed our understanding of the world". It was presented on April 24, 1914, to the German Physical Society in a paper by James Franck and Gustav Hertz.
Franck-Hertz experiment, in physics, first experimental verification of the existence of discrete energy states in atoms, performed (1914) by the German-born physicists James Franck and Gustav Hertz. Franck and Hertz directed low-energy electrons through a gas enclosed in an electron tube.
- The Editors of Encyclopaedia Britannica
The Franck–Hertz experiment was the first electrical measurement to clearly show the quantum nature of atoms, and thus "transformed our understanding of the world". It was presented on April 24, 1914, to the German Physical Society in a paper by James Franck and Gustav Hertz.
The Franck-Hertz Experiment*. In 1914, James Franck and Gustav Hertz performed an experiment which demonstrated the existence of excited states in mercury atoms, helping to confirm the quantum theory which predicted that electrons occupied only discrete, quantized energy states.
The original free-electron/mercury-atom collision experiment was first performed in 1914 by James Franck and Gustav Hertz who were later awarded the 1925 Nobel Prize for their work. Their simple, but elegant research represents one of the key experiments that helped to establish our Modern Atomic Theory.
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Franck and Gustav Hertz performed an experiment that demonstrated the existence of quantized energy levels in mercury. The experiment involved sending a beam of electrons through mercury vapor and observing the loss of kinetic energy when an electron strikes a mercury atom and excites it from its lowest energy state to a higher one.
Jul 18, 2014 · The 1914 experiment of James Franck and Gustav Hertz provided a graphic demonstration of quantization properties of atoms, thereby laying the foundations of modern atomic physics. This article revisits the experiment on the occasion of its Centenary, compares traditional and modern interpretations, and focuses in particular on the link between ...
