Question

Match the items in List 1 with those in List 2
List 1:Electronic configuration
List 2: Total spin

Answer 1

Orbitals which are fully filled have a total spin $=0$

$\left(A\right)\to \left(1\right)$

$1s^{2}2s^{2}2p^6$

All are full ; Total spin $=0$ (zero)

$\left(B\right)\to \left(2\right)$

$1s^{2}2s^{2}2p^5$

1 unpaired electron( $2p^5$ )

Total spin $=+\frac{1}{2}or-\frac{1}{2}$

$\left(C\right)\to \left(3\right)$

$1s^{2}2s^{2}2p^3$

$3$ unpaired electron( $2p^3$ )

Total spin $=+\frac{3}{2}or-\frac{3}{2}$ due to Hund's rule of maximum multiplicity.

$\left(D\right)\to \left(4\right)$

$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^5$

Total spin $=+\frac{5}{2}or-\frac{5}{2}$ due to Hund's rule of maximum multiplicity.