• # question_answer Five valence electrons of ${{p}^{15}}$ are labelled as If the spin quantum of $B$ and $Z$ is $+\frac{1}{2}$, the group of electrons with three of the quantum number same are [JIPMER 1997] A)                 $AB,\,XYZ,\,BY$             B)                 $AB$ C)                 $XYZ,\,AZ$       D)                 $AB,\,XYZ$

Solution :

For both A & B electrons $s=-1/2$ & $+1/2$ respectively, $n=3,\,l=0,\,m=0$

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