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Which factors can influence the ionic radius of an element or ion?

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Ionic radius is influenced by following factors:

(i) Effective Nuclear Charge:

Ionic radius α \(\frac{1}{effective\,nucleur\,charge}\)

As the effective nuclear charge increases, ionic radius decreases.

(ii) Shielding Effect: Ionic radius α shielding effect as the shielding effect increases, ionic radius increases.

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