Question

How many groups and periods are there in the modern periodic table? How do the atomic size
and metallic character of elements vary as we move : (a) down a group and (b) from left to right
in a period??
Hey answer it frnds plzzz

Answer 1

The modern periodic table consists of18 groups and 7 periods. i) Down the group, the atomic size and metallic character of elements increase. ii) On moving from left to right in a period, the atomic size and metallic character of elements decreases.Please mark as brainlist......