Question

explain how the tendency to loose electron will change in a group and period?

Answer 1

Tendency of an element to lose the electrons increases when we go down the group.This is because atomic size increases when we move down a group. And force of attraction of nucleus for the valence electron decreases. This makes it easier for an element to lose electrons. Hence, metallic character increases on moving down a group.

We know that there is a increase in the number of valence electrons as well as nuclear charge as we move across a period. Due to this reason, atomic size decreases. As a result, it becomes difficult for an atom to lose electrons as we move from left to right across the periodic table. So tendency to lose the electrons decreases.

Answer 2

The tendency lose electron increases as we go down in a group .  BEcause when we go down in a group then the atomic size of an element increases due to increase in number of shell...