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What Is Fajan's rule?

Fajan's rule states that ionic character increases when the cation is small and highly charged, and the anion is large and polarizable.

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Key Points to Remember in Fajan's rule

This rule helps predict the degree of ionic versus covalent character in bonds.

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Fajan's rule in NEET Chemistry: What to Focus On

NEET may test this concept through examples of specific compounds.