Chapter 22, Problem 22.95AP

Interpretation Introduction

Interpretation: The manganese(II) chloride is given to be first compounds investigated as MRI contrast agents. The number of unpaired electrons of formed complex ${\text{MnCl}}_{\text{2}}{\left({\text{H}}_2\text{O}\right)}_4$, when ${\text{MnCl}}_{\text{2}}$ is dissolved in water are to be calculated

Concept introduction: The electronic configuration of $\text{Mn}$ metal is $\left[\text{Ar}\right]4{\text{s}}^{2}3{\text{d}}^5$. The electronic configuration of $\text{Mn}$ metal in $+2$ oxidation state is $\left[\text{Ar}\right]3{\text{d}}^5$.

To determine: The number of unpaired electrons of formed complex ${\text{MnCl}}_{\text{2}}{\left({\text{H}}_2\text{O}\right)}_4$, when ${\text{MnCl}}_{\text{2}}$ is dissolved in water.