Which one of the following set of quantum numbers is not possible for $4 p$ electron?

Which one of the following set of quantum numbers is not possible for $4 p$ electron?
  1. $\mathrm{n}=4, l=1, \mathrm{~m}=-1, \mathrm{~m}_{\mathrm{S}}=+\frac{1}{2}$
  2. $\mathrm{n}=4, l=1, \mathrm{~m}=0, \mathrm{~m}_{\mathrm{S}}=+\frac{1}{2}$
  3. $\mathrm{n}=4, l=1, \mathrm{~m}=2, \mathrm{~m}_{\mathrm{S}}=+\frac{1}{2}$
  4. $\mathrm{n}=4, l=1, \mathrm{~m}=-1, \mathrm{~m}_{\mathrm{S}}=-\frac{1}{2}$

Solution

For $4 p$ electron $\mathrm{n}=4,1=1, \mathrm{~m}=-1,0+1$ and $\mathrm{S}=+1 / 2$ or $-1 / 2$ .

Asked in: JEE-TOPICTESTS-CHEMISTRY

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