Question

atomic radius goes on increasing down at a grouphello​

Answer 1

Explanation:

Atomic radius increases as we move from top to bottom in a group of the periodic table because a new shell of electrons is added to the atoms at every step. As the number of shells in the atoms increases gradually due to which the size of atoms also increases.

Answer 2

Answer:

In general, atomic radius decreases across a period and increases down a group.Down a group, the number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital. This results in a larger atomic radius.