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Multi-Electron Configurations and Orbital Diagrams

The spin quan...

Question

The spin quantum number came into existence due to presence of pair of very closely spaced lines in the spectrum of an atom.

A

True

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B

False

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Solution

The correct option is A True
The spin quantum number was introduced by Sommerfeld. This was to explain the fine spectrum (closely spaced line spectrum). Hence given statement is true.

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Q. A fine spectrum is splitting of a spectrum into closely spaced lines.

Q. Identify the correct matched lists

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i	Total number of lines in H-spectrum for a transition 5 -> 1	A	Decreases
ii	Intensity of spectral line in the spectrum, as	B	H-spectrum
iii	n value increases	C	10
iv	Band spectrum is due to	D	Rotations and vibrations of atoms in molecules in addition to electronic transition
	The proof for the presence of energy levels in an atom	E	lncreases

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