What is the importance of spectroscopy in structure determination?
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Aluminium has the highest nuclear charge, so its 2p peak should have the largest binding energy, but shielding effects reverse this trend.
Justify your answer.
In Raman spectra, the Stokes line are more intense than the anti-Stokes lines. Why?
The lifetime of (excited state) is
. If the excited state is
above the ground state determine the linewidth
and ratio
.
What is meant by the Balmer series of hydrogen? What will be the wave number of the longest wavelength in the Balmer series?
The frequencies of the first and second overtones respectively are exactly double and triple of the fundamental vibration frequency. Comment.
What is Mossbauer effect?
What makes TMS a molecule of choice to act as a reference in the NMR spectrometry?