Question

(i) Name the most reactive element.
(ii) How many shells does D have?
(iii) Name the element having 2 valency
(iv) How many valence electrons does J have.
(v) Which is more reactive H or I.
(vi) The atom of which element is bigger in size E or H. ​

Answer 1

Answer:

Cesium

Explanation:

Cesium is second from the bottom of this group, has 6 shells of electrons, and it matches the features of a reactive atom, making it the most reactive element.

I hope it was helpful!

Answer 2

Answer:

cesium I hope it's help you