WAEC Chemistry 2013 Paper

Concept:Alkaline earth metals are the elements found in Group $II$ of the periodic table.Explanation:The periodic table is arranged into vertical columns called groups.Group $I$ contains the alkali metals.Group $II$ contains the alkaline earth metals, such as beryllium ($\mathrm{Be}$), magnesium ($\mathrm{Mg}$), calcium ($\mathrm{Ca}$), strontium ($\mathrm{Sr}$), barium ($\mathrm{Ba}$), and radium ($\mathrm{Ra}$).Therefore, the correct position for alkaline earth metals is Group $II$.Answer:Group $II$ — Option B.