d and f Block Elements

Atomic Radii The atomic radii of the transition elements are intermediate between those of s- and p-block elements. (a) The atomic radii of elements of a particular series decrease with increase in atomic number but this decrease in atomic radii becomes small after midway. For example: For the elements of first transition series, the atomic radii decrease gradually … [Read more...] about Atomic Radii, Metallic Character, Enthalpy of Atomisation & Density of Transition Elements

Transition Elements The transition elements are those elements which have incompletely filled (partly filled) d-subshells in their ground state or in any one of their oxidation states. 1) The d-block elements are called transition elements. This block consists of elements lying between s- and p-blocks i.e. , between groups 2 and 13, starting from fourth period. 2) In … [Read more...] about Characteristics and Electronic configuration of Transition Elements