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