Ion Polarisation is the power of cation to attract electrons. Factors affecting the polarising power of cation: 1- charge density of the cation, the smaller the size of the cation the denser the charge of the cation making polarising power or attracting power of cation stronger. 2- small size of cation 3- cation has charge of 2+ or 3+ 4- the ease of anion to be polarised due to anion has a charge of 2- or 3-
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