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The correct set of quantum numbers for the unpaired electron of chlorine atom is

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The correct set of quantum numbers for the unpaired electron of chlorine atom is
A. `n=2, l=1, m=0`
B. `n=2, l=1, m=1`
C. `n=3, l=1, m=1`
D. `n=3, l=0, m=0`
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Correct Answer - 3
`Cl_(17): [Ne] 3s^(2) 3p^(5)`
Unpaired electron is in `3p` orbital. `:. N=3, l=1, m=1, 0, -1`.
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