Question

what is the meaning of ammoiated cation and ammoniated electron

Answer 1

If you take a Dewar flask of liquid ammonia (NH3) and add some solid sodium (Na) metal that has had its surface cleaned of any oxide or hydroxide coating, the first thing you notice is that the liquid turns blue. What is happening? The Na is dissolving in the liquid, dissociating into Na(1+) cations and solvated electrons, in this case ammoniated, e(1-)(am). The Na(1+) can form ammine coordination complexes with free NH3 from the solvent which you can call an ammoniated cation, (NH3)xNa(1+).