Question

what are representative elements ​

Answer 1

Answer:

In chemistry and atomic physics, the main group is the group of elements whose lightest members are represented by helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine as arranged in the periodic table of the elements.

Answer 2

In the periodic table the elements which are in s block and p block are called representative elements.

Or

The elements whose last electrons are filled in s orbital or p orbital only are called representative elements.