Calculate the $\mathrm{EAN}$ of central atom in the following complex:

${\left[\mathrm{Cu}(\mathrm{CN}{)}_4\right]}^{3-}$

Calculate the $\mathrm{EAN}$ of the central atom in the following complex

${\left[\mathrm{Pd}{\left({\mathrm{NH}}_3\right)}_6\right]}^{4+}$

Calculate the $\mathrm{EAN}$ of the central atom in the following complex

${\left[{\mathrm{PtCl}}_6\right]}^{2-}$

Calculate the $\mathrm{EAN}$ of the central atom in the following complex.

$\left[\mathrm{Fe}{\left(\mathrm{CO}\right)}_2{\left(\mathrm{NO}\right)}_2\right]$

Calculate the $\mathrm{EAN}$ of the central atom in the following complex

$\left[\mathrm{Fe}{\left({\mathrm{C}}_5{\mathrm{H}}_5\right)}_2\right]$

For the following complex, draw a crystal field energy-level diagram, assign the electrons to the orbitals, and predict the number of unpaired electrons:

${\left[{\mathrm{CrF}}_6\right]}^{3-}$

For the following complex, draw a crystal field energy-level diagram, assign the electrons to the orbitals, and predict the number of unpaired electrons:

${\left[\mathrm{V}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+}$

For the following complex, draw a crystal field energy-level diagram, assign the electrons to the orbitals, and predict the number of unpaired electrons:

${\left[\mathrm{Cu}(\mathrm{en}{)}_3\right]}^{2+}$

For the following complex, draw a crystal field energy-level diagram, assign the electrons to the orbitals, and predict the number of unpaired electrons:

${\left[{\mathrm{FeF}}_6\right]}^{3-}$