Nitrogen has more valence electrons than fluorine or aluminium, therefore its peak appears at the highest binding energy.
The statement is incorrect because the number of valence electrons does not determine the binding energy of an element’s peak. Binding energy depends primarily on the effective nuclear ________ __________ ___ ____ ________ ________ _________.
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Explain why the atomic spectra are line spectra whereas the molecular spectra are band spectra.
The frequencies of the first and second overtones respectively are exactly double and triple of the fundamental vibration frequency. Comment.
Explain the origin of atomic spectrum.
What information about the molecule can be obtained from a rotation spectrum?
A light source of wavelength illuminates a metal surface and electron are ejected with the maximum kinetic energy 2 eV. If the same surface is illuminated by a light source of wavelength
, then calculate the maximum kinetic energy of the ejected electron. (Work function of metal is 1 eV)
Write short notes on the following.
What are different mechanisms that contribute to the relaxation of nuclear spins in the excited state? Explain any one of them.