Question

Five valence electrons of ${}_{15}P$ are labeled as-
If the spin quantum number of q and z is $+\frac{1}{2}$.
The group of electrons with three of the quantum number same are:

• A. $pq$
• B. $\left(xyz\right),\left(pq\right)$
• C. $\left(pq\right),\left(xyz\right),\left(pz\right)$
• D. $\left(pq\right),\left(xyz\right),\left(py\right)$

Answer 1

Answer: (A), (B)

The correct options are
A $pq$
B $\left(xyz\right),\left(pq\right)$

$p,q$ electrons has same value of $n=3,l=0,andm=0$ quantum numbers.
$x,y,z$ electrons has same $n=3,l=1,ands=+1/2$ quantum numbers.