Block Elements

Block Elements After studying this Unit, you will be able to • learn the positions of the d– and f- block elements in the periodic table; • know the electronic configurations of the transition ( d -block) and the inner transition ( f -block) elements; • appreciate the relative stability of various oxidation states in terms of electrode potential values; • describe the preparation, properties, structures and uses of some important compounds such as K Cr O and KMnO ; • understand the general characteristics of the d– and f– block elements and the general horizontal and group trends in them; • describe the properties of the f -block elements and give a comparative account of the lanthanoids and actinoids with respect to their electronic configurations, oxidation states and chemical behaviour.