The crystal field stabilization energy ($CFSE$) in ${\mathrm{cm}}^{-1}$ for ${\left[\mathrm{Ti}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+}$ that has absorption maximum at $500 \mathrm{nm}$ is $x\times {10}^2{ \mathrm{cm}}^{-1}$. Then $x$ is

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

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