Relier Pairs Periodic Table, Groups, Periods, and Ions - Picture VersionVersion en ligne Find the matches. par Heather Holmes 1 Ions in this set always have a 1- charge. 2 Molecular Compound 3 Ions in this set always have a 2+ charge. 4 Ionic Compound 5 Elements in this set can form more than one ion . 6 Ions in this set always have a charge of +1. 7 Elements in this set are generally non-reactive.