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Question

The spin angular momentum of an electron has no analog in classical mechanics. However, it turns out that the treatment of spin angular momentum is closely analogous to the treatment of orbital
angular momentum.
Spin angular momentum =s(s+1)h
Orbital angular momentum =l(l+1)h
Total spin of an atom or ion is a multiple of 12. Spin multiplicity isa factor to confirm the electronic configuration of an atom or ion.Spin multiplicity =(2s+1)

The orbital angular momentum for a 2p-electron is:

A
3h
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B
6h
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C
Zero
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D
2h2π
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Solution

The correct option is B 2h2π
Orbital angular momentum =l(l+1)h2π
The orbital angular momentum for a 2p-electron (l=1) is
=l(l+1)h2π
=1(1+1)h2π
=2h2π

Hence, the correct option is D

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