Question

5. the size of atom increases when we go from top to down.​

Answer 1

Explanation:

On moving down the group, new shells are being added. The nuclear charge is not enough to reduce the size enough. So the radius increases as we move down the group.

Answer 2

Answer:

On moving down the group, new shells are being added. The nuclear charge is not enough to reduce the size enough. So the radius increases as we move down the group.