Alkali metals are monovalent elements because they tend to lose the valency electron during the chemical reaction. the elements of group (1A) are known as alkali metals because they react with the water forming...
Elements of the group (1A) are known as alkali metals because they react with water forming alkaline solutions. Potassium is more active than sodium because the atomic size of potassium is larger than that...
The alkaline earth elements are the metallic elements found in the second group of s-block after the group (1 A). They are located on the left side of the modern periodic table.
