Match the substance with its chemical formula. 1. h+ hydroxide ion 2. h3o+ hydronium ion 3. oh- hydrogen ion

             Hydroxide Ion  =  OH⁻

            Hydronium Ion =  H₃O⁺

             Hydrogen Ion  =  H⁺

                        Ions are those species which either contain positive charge or negative charge. Ions are further classified as Monoatomic ions (a single atom containing positive or negative charge) or Polyatomic Ions ( group of Atoms containing positive or negative charge).

                        In given three ions the Hydroxyl Ion and Hydronium Ions are the examples of polyatomic ions while, Hydrogen ion is the example of monoatomic ion.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.