How do ionic charge and radius affect lattice enthalpy?

  • Google+ icon
  • LinkedIn icon
  • 1932 views

As the charge of an ion increases, so does its charge density.  The ion can therefore form stronger electrostatic forces of attraction, resulting in stronger bonds.  As these bonds form to produce a lattice structure, more energy is released compared to from ions with a lower charge.  This results in a more exothermic (more negative) lattice enthalpy.

Conversely, as ionic radius increases, charge density decreases, resulting in weaker bonds during the formation of a lattice so the overall enthalpy change is less exothermic.

Katherine F. A Level Chemistry tutor, A Level Biology tutor, GCSE Fre...

About the author

is an online A Level Chemistry tutor with MyTutor studying at Oxford, Trinity College University

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok