Anion size is always _______ than the parent atom.

Account for the observation that cations are always smaller than the parent atom while anions are always larger than the parent atom.

Why is the size of anion always larger than the parent atom?

Assertion: Radius of the ion is always smaller than the parent atom. Reason: Ion is formed by the loss or gain of electrons by the parent atom.

A graph of aromic radius versus atomic number is given blow: Account for the observation that cations are always smaller than the parent atom while anions are always smaller the parent atom.

Account for the following: A cation is always smaller that its parent atom.

Give reason for the following. a) The electron gain enthalpy of O is less negative than that of S. b) The size of anion is larger than the parent atom.