Groups I to V (only Ag+ , Hg2+, Cu2+, Pb2+, Fe3+, Cr3+, Al3+, Ca2+, Ba2+, Zn2+, Mn2+ and Mg2+)
The groups I to V you are referring to are likely the first five groups of the periodic table. These groups contain a variety of cations with different properties and reactivities. Group I cations include silver (Ag+), which is often used in jewelry and silverware, and mercury (Hg2+), which is a toxic heavy metal. Both…