Question

observe the following diagram and answer the coming
questions
A) Identifiy elements and Y​

Answer 1

1. Sodium
2. Lithium
Yes they belong to same group
Sodium is more electropositive than lithium because electricity increases from the rights side to the left side of the periodic table along a group

Answer 2

Answer:A)Element X is Na(Sodium) And Y is Li(Lithium)

B)Yes, these two elements belong to the same group i.e. Group 1.

C)Na is more electropositive because it could lose its valence electron more easily than Li because of the distance of valence electron from the nucleus is more than that of the Li and also as the number of shell increases, the electropositivity increases.