# Relationship of Dielectric constant with ionic bond

How is dielectric constant related to formation of ionic bond?

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• @Mithoron Thanks. But chemistry and biology you cant just separate out. – Nil Aug 11 '16 at 19:31

$${F\propto \frac{q_1 q_2}{d^2 \epsilon }}$$
You see that the strenght of a ionic bond is directly proportional to the product of the charges on the ions, inversely proportional to the square of their distance, and inversely proportional to the dielectric constant of the solvent. In vacuum, the dielectric constant is $\epsilon = 1$.