Question

The elements calcium, strontium, and barium were put in one group of families on the basis of their similar properties, what are those similar properties and what is the usual name of this group of families?

Answer 1

Alkaline earth metals:

• The alkaline earth elements are located in Group IIA.
• Reason: The alkaline earth metals are so called because their oxides and hydroxides are alkaline in nature and these metal oxides are found in the earth's crust.
• Beryllium, Magnesium, Calcium, Strontium, and Barium were put in one group called alkaline earth metals.

The properties of alkaline earth metals are as follows:

• The s block elements having two electrons filling their s-orbital are called group two or alkaline-earth metals.
• They have two electrons in the outer shell so they have a valency of 2 and the charge is +2.
• The alkaline-earth elements are highly metallic and are good conductors of electricity.
• The alkaline earth metals are reactive, although less than the alkali metals.