Which of the following properties increases down a group in the Periodic Table?
Answer Details
The property that increases down a group in the Periodic Table is atomic radius. Atomic radius is the distance between the nucleus of an atom and its valence electrons, which determines the size of the atom. As one goes down a group in the periodic table, the number of energy levels (shells) in the atom increases, making the atomic radius larger. This is due to the increasing distance between the nucleus and valence electrons as the number of shells increases. Therefore, the correct option is atomic radius.