Question

The total spin resulting from a d9 configuration is

Answer 1

configuration of d7 has 3 unpaired electron  

and total spin value = n/2

where is the number of unpaired electron

therefore total spin for d7 =3/2  (n=3)

Answer 2

Answer : The total spin is, $\frac{1}{2}$

Explanation :

The given configuration is, $d^9$

That means it contains 1 number of unpaired electrons.

The formula for total spin is :

$s=\frac{n}{2}$

where,

s = total spin = ?

n = number of unpaired electrons = 1

Now put the value of 'n' in this formula, we get the value of total spin.

$s=\frac{n}{2}=\frac{1}{2}$

Therefore, the total spin is, $\frac{1}{2}$