Question

Define Groups in the modern periodic table. How do valency, atomic size and mettalic character are vary in a group.​

Answer 1

Explanation:

Difine:Groups in the modern periodic table Vertical columns of the periodic table are known as groups. (i) The number of valence electrons remains constant when we move down the group. (ii) The number of occupied shells increases down the group. ... (iv) The metallic character of elements increases down the group.