Question

Alkaline earth's metals are denser than alkali metals because metallic bonding in alkaline earth's metal is:

• A. stronger
• B. weaker
• C. volatile
• D. none of the above

Answer 1

The correct option is A stronger

Alkaline earth metals (${ns}^2$) are denser than alkali metals (${ns}^1$) because metallic bonding in alkaline earth metals is stronger than alkali metals due to presence of two electrons in valence shell as compared to one electron in alkali metals.