EVERYDAY SCIENCE

Detailed explanation-1: -Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

Detailed explanation-2: -The elements of group-2 are called alkaline earth metals because because their oxides and hydroxides are alkaline in nature and these metal oxides are found in the earth’s crust.

Detailed explanation-3: -The Group 2 alkaline earth metals include Beryllium, Magnesium, Calcium, Barium, Strontium and Radium and are soft, silver metals that are less metallic in character than the Group 1 Alkali Metals.

Detailed explanation-4: -The elements in group one are called the alkali metals; those in group 2 are the alkaline earth metals; those in fifteen are the pnictogens; those in sixteen are the chalcogens; those in seventeen are the halogens; and those in eighteen are the noble gases.