The quantization of energy, as well as the generation, registration, and analysis of spectra and the associated experimental confirmation of models, are important components of most curricula around the world. The well-known 1913 experiment ...
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Highly evacuated glass tube filled with low-pressure argon and containing multiply distilled sodium for demonstrating the resonance fluorescence of sodium vapor. The entire tube emits yellow light at the wavelength of the sodium 'D' line when ...
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