Question

Explain fajan's rule.

Answer 1

Fajan gives the following four rules for the Polarisation:Polarization will be increased by:
1. High charge and small size of the cation.2. High charge and large size of the anion.3. The polarizability of an anion is related to the deformability of its electron cloud (i.e. its “softness”)4. An incomplete valence shell electron configuration. Noble gas configuration of the cation produces better shielding and less polarizing power

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Answer 2

Hey brainly user

Here is your answer

» For a given cation, covalent character Increases with increase in size of the anion

» For a given anion, covalent character increases with a decrease in the size of the cation

» Covalent character Increseas with increasing charge either on cation or an anion

» Covalent character is higher for compounds with cations with pseudo noble gas electronic configuration