This video lecture from Transition Elements (F.Sc. second year Chemistry) covers: The variable oxidation states of transition elements because of partially filled d orbitals. The relationship of MP & BP with the Binding forces in metals(Enthalpy of atomization). Anamolous behavior of Manganese and other transition metals is explained. Variation of oxidation states periods 5,6 and 7 including Lanthanides / Actinides is discussed. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.