Chapter 2, Problem 7CT

Summary Introduction

To answer:

Neon (atomic mass 10) and argon (atomic mass 18) are inert elements, which mean that they very rarely form chemical bonds. The electron configuration of their atoms, and explain the reason why these elements are inert.

Introduction:

Neon and argon are the inert elements that have completely filled valence electrons in their outer shells. The outermost valence electrons that did not attain complete electron configuration will only take part in the chemical reactions.