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Q.

Spin angular momentum of unpaired electron in sodium ( Atomic No. = 11 ) is

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a

−32h2π

b

32

c

none of these

d

0.866h2π

answer is B.

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Detailed Solution

The spin angular momentum of unpaired electron in sodium can be given as,

S=12×32⋅h2π 

S=0.866h2π

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