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  • Which of the following sets of quantum numbers is not allowed?Option: 1 <img alt="\mathrm{n}=3,1=2, \mathrm{~m}_{1}=0, \mathrm{~s}=+\frac{1}{2}" src=

Which of the following sets of quantum numbers is not allowed?

Option: 1

\mathrm{n}=3,1=2, \mathrm{~m}_{1}=0, \mathrm{~s}=+\frac{1}{2}


Option: 2

\mathrm{n}=3,1=2, \mathrm{~m}_{\mathrm{l}}=-2, \mathrm{~s}=+\frac{1}{2}


Option: 3

\mathrm{n}=3,1=3, \mathrm{~m}_{\mathrm{l}}=-3, \mathrm{~s}=-\frac{1}{2}


Option: 4

\mathrm{n}=3,1=0, \mathrm{~m}_{\mathrm{l}}=0, \mathrm{~s}=-\frac{1}{2}


Answers (1)

best_answer

We know, Azimuthal quantum number (\ell)=0,1,2,......

So, \mathrm{n=3,\ell=0,1,2}

Hence, option (3) has \mathrm{\ell=3}, for \mathrm{n=3} which is not allowed.

Hence, the correct answer is Option (3).

Posted by

manish

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