Question

The total spin resulting from a $d^9$ configuration is :

• A. $\frac{1}{2}$
• B. $2$
• C. $1$
• D. $\frac{3}{2}$

Answer 1

The correct option is A $\frac{1}{2}$

The total spin resulting from a $d^9$ configuration is $\frac{1}{2}$. $d^9$ configuration contains only 1 unpaired electron with spin $\frac{1}{2}$.