The elements that will not typically form ions are the noble gases, located in Group 18 of the periodic table. These elements are:

* Helium (He)

* Neon (Ne)

* Argon (Ar)

* Krypton (Kr)

* Xenon (Xe)

* Radon (Rn)

Why don't noble gases form ions?

Noble gases have a full outer shell of electrons, which makes them incredibly stable. They have no tendency to gain or lose electrons, and therefore do not readily form ions. This is why they are called "noble" gases – they are inert and don't readily react with other elements.

Note: While the noble gases are generally unreactive, some of them can form compounds under extreme conditions. For example, xenon can form compounds with fluorine and oxygen. However, these are quite rare and not typical behavior.