Question

How do I understand how the valence electrons are related to the Groups in the Periodic Table

Answer 1

Answer:

Electrons in the outermost shell are called valence electrons, because it is their interactions that determine the chemical properties of an element. The columns that were set up to group elements by similar chemical properties turn out to be the exact same columns defined by the number of valence electrons.

Answer 2

Answer:

refer to the attachment plz

hope it helps you