POLARISATION OF IONS: (COVALNET CHARACTER IN IONIC BONDS), POLARISING POWER OF CATION, POLARISABILITY OF ANION, BOND POLARITY & REACTIVITY, BOND ENERGY
POLARISATION OF IONS: (COVALNETCHARACTER IN IONIC BONDS). A pure ionic bond is formed when there is a complete transference of electrons takes place. The ions formed are perfect spheres. However, positive charge on the cation has an ability to attract electrons cloud from the anion toward itself. This results in the distortions of the anion. This distortion is known as polarization. This ability of a cation to attract electron cloud and distort an anion is called its polarizing power. On the other hand the ease in which electron cloud of an anion can be distorted is called polarizability. Hence, the degree of polarization of an ionic bond refers to degree of covalency in an ionic bond. The distorted or polarized electron cloud of anion. Polarisation brings more electron cloud between the ionic nuclei and thus produces a significant degree of covalent bonding between the ions. When this occurs, the molecule still ha...