Chapter 8, Problem 8.12QP

Interpretation Introduction

Interpretation:

Valence electrons should be explained. Also the group number is same as the number of valence electrons has to be shown for the given representative elements.

Concept Introduction:

Valence electrons are outer shell electrons that take part in the chemical bond formation of an atom.

Chemical properties of an element can be determined by the number of valence electrons.

The elements with same valence electrons have similar properties and are placed in the same group in periodic table.

Representative elements contain either s or p subshell which are incomplete and have outer electronic configurations of ${\text{ns}}^{\left(\text{1-2}\right)}n{p}^{\left(0-5\right)}$.