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