D And F Block Elements

$\mathrm{Cr} < \mathrm{Mn} < \mathrm{Fe}$ - standard electrode potential value for $\mathrm{M}^{3+} / \mathrm{M}^{2+}$

$\mathrm{Cr}^{2+} < \mathrm{Mn}^{2+} < \mathrm{Fe}^{2+}$ - magnetic moments

$\mathrm{VO}_{2}^{+} < \mathrm{Cr}_{2} \mathrm{O}_{7}^{2-} < \mathrm{MnO}_{4}^{-}$ - oxidising power

$\mathrm{Ti} < \mathrm{V} < \mathrm{Cr}$ - first ionisation enthalpy