Question

How many groups of elements are present in Periodic Table ?

Answer 1

The number of element groups is summarized as follows:

1. The Periodic Table is a tabular display of all the elements present in the earth's crust in which different elements are categorized according to their physical and chemical properties in rows and columns.
2. Columns in Periodic Table $=$ Group of Element in Periodic Table
3. There are $18$ columns in the Periodic table.

Therefore, there are $18$ groups of elements in the Periodic Table.