Difference between Ionized and Ionised

What is the difference between Ionized and Ionised?

Ionized as a verb is to dissociate atoms or molecules into electrically charged species; to be thus dissociated. while Ionised as a verb is to dissociate atoms or molecules into electrically charged species; to be thus dissociated.

We hope you now know whether to use Ionized or Ionised in your sentence.