Question

Explain



a.Atomic size



b.Valency



c.Metallic character

Answer 1

Atomic size is defined as the distance between nucleus to the outer most shell.

Valency is combining power of an element especially to the number of hydrogen atoms it can gain or lose

Answer 2

(1)The distance between the nucleus of the atom and its outer shell

(2)The capacity of an atom to give, take, or share electrons

(3)Tendency of metal atoms to form cations by losing its valence electrons