Question

(viii) Observe the following diagram and answer the following sub-
(a) Identify elements X and Y.
(b) Do these elements belong to the same group? Explain.
(c) Which element is more electropositive in nature? Why?
Group 2
Solve the following quentin​

Answer 1

Answer: a) Lithium(Li) and Sodium(Na).

b) Yes, this element belong to same group because both the elements have one valence electron on the outer most orbit.

c) Sodium is more electropositive because it comes after lithium in group and in group electropositive character of metal increases as we go down.

Answer 2

The most electropositive element is cesium due to bigger size the eletropocitive force of the nucleus is less on the outer most electrons.

Explanation:

Which element is more electro-positive in nature? Why?

The elctro-positive elements are those which have the ability to lose electrons.

The more electro-positovity the more easily electron can be lost.

Metal are the most elelctro-positive elements in the periodic table.

The most electropositive element is cesium due to bigger size the eletropocitive force of the nucleus is less on the outer most electrons.