Question

What is the ability of an anion to undergo distortion called?

Answer 1

Fajan's rule

• Fajans discussed the partial covalent character of ionic bonds.
• The % covalent character of an ionic bond is determined by the polarising power of the cation, the polarizability of the anion, and the extent of distortion (polarisation) of the anion.
• Polarizability refers to the ability of an anion to become polarised by a cation.

So, the ability of an anion to undergo distortion is called polarizability.