First slide
Trends in Atomic Properties & Physical Properties
Question

Statement I : Melting points of Alkaline earth metals are lower than those of corresponding Alkali metals

Statement II : Metallic bonding is weaker in IIA group elements than IA group elements.

Easy
Solution

Melting points of alkaline earth metals(IIA) are greater than that of alkali metals (IA)
Reason
1) Size of alkaline earth metals are smaller when compared to alkali metals and hence inter atomic attractions [metallic Bond] in alkaline earth metals are strong than alkali metals

2) Number of valency electrons involved in metallic bond is "2" in case of IIA group elements, where as number of valency electron involved in metallic bond is (1) in the case of IA group elements

Both statement - I  and statement - II are False

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App