Greater absolute charge - This is because ionic bond results from stronger electrostatic forces of attraction. - The higher the value of charges q₁ and q₂ the stronger will be the ionic bond.
The strength of an ionic bond depends on the ionic radius and the charges of the ions. With an increase in radius, there would be increase in the number if protons and this will also make the inner shells to be more complete. The smaller the radius the stronger the bond. In addition, the higher the number of electron lost, the more stronger the ionic bond.
