Question

what is groups in periodic table​

Answer 1

Answer:

Group, in chemistry, a column in the periodic table of the chemical elements. In a group, the chemical elements have atoms with identical valence electron counts and identical valence vacancy counts. ... Groups are numbered from 1 to 18.

Answer 2

Hey mate! Here is your answer
Groups in Periodic Table:
The 18 vertical columns are called groups. The elements belonging to a particular group is known as a family and is usually named after the first member. Apart from this some of the groups are given typical names as exemplified beneath:
> Elements of the group 1 are called Alkali-Metals.
> Elements of the group 2 are called Alkaline Earth metals.
> Elements of group 15 are called Pnicogens.
> Elements of group 16 are called Halogens.
> Elements of group 18 are called Noble Gases or Aerogens.