Chapter 4, Problem 57QAP

Interpretation Introduction

Interpretation:

To determine the noble gas which is relatively present in large concentration in the atmosphere.

Concept Introduction:

Periodic table is arrangement of different elements with the help of columns and rows in order to characterize elements with similar properties in same groups such as alkali metals, alkaline earth metals, halides, noble gases, transition elements etc. In the periodic table, columns represent groups and rows represents periods.

The elements of group 18, which are known as noble gases are following:

1. helium (He).
2. neon (Ne).
3. argon (Ar).
4. krypton (Kr).
5. xenon (Xe).
6. radon (Rn).
7. oganesson(Og).

They are known as noble or inert because they have complete octets and do not react with other elements.