👉 Cationically is a term used in chemistry to describe an ion that has a positive charge on its outermost electron. It is also known as an ionic species, and it can be either a positively charged ion or a negatively charged ion depending on the specific structure of the molecule. In the context of cationically defined ions, the charge on their outermost electron determines whether they are neutral (a type of ion that does not have any negative charges), positive (anionically charged ion