D And F Block Elements

Ability of Fluorine to stabilise higher oxidation states in transition metals is due to the low lattice enthalpy of the fluorides.

The second and third Ionisation enthalpies of \(\mathrm{Mn}^{2+}\) and \(\mathrm{Fe}^{3+}\) respectively have lower values than expected.

Transition metals readily form alloys because their metallic radii are within about \(15 \%\) of each other.

\(\mathrm{Cr}^{2+}\) acts as reducing agent while \(\mathrm{Mn}^{3+}\) acts as an oxidising agent though both the ions have \(\mathrm{d}^4\) configuration.