Chapter 3, Problem 42A

Interpretation Introduction

Interpretation :

The reason for group eight elements to be termed as inert or noble gas elements needs to be explained.

Concept Introduction :

The periodic table is divided into two columns one is a vertical column known as groups and another one is horizontally termed as a period. The elements present in the 18^th group of the periodic table are known as the noble gases or inert gases due to their atomic configuration and chemical reaction.

Answer to Problem 42A

The inert or noble gas term is just for the stability of the elements, and the stability is due to the fully filled outermost shells of the elements.

Explanation of Solution

The elements are placed into the eighteen group (or group 8A) is also known as the inert gases, the name for them is due to the inert chemical behavior. The inert gases are stable and non-reactive which makes them very difficult to spot when they are mixed with other gases in the air.

Conclusion

The stability of the elements and non-reactive inert nature is the reason for the group eighteen elements to be termed as noble or inert gases.