Chapter EH, Problem 18R

Solution

Interpretation : Alkaline earth metals are so reactive to be explained.

Concept Introduction : The elements of group 2 have two valence electrons. The elements are also called alkaline earth metals.

Alkaline earth metals are so reactive due to the two electrons present in the valence shell.

The elements of group 2 include beryllium, magnesium, calcium, strontium, barium, and radon.

All these elements combine with oxygen and other metals.

They are so reactive due to the presence of two valence electrons in the outermost shell.

In order to achieve noble gas configuration, alkaline earth metals react rapidly to lose the two valence electrons.