Chapter 4, Problem 4.97E

Interpretation Introduction

Interpretation:

The number of electrons present in the outermost energy level of the elements in group zero of the periodic table is to be identified.

Concept Introduction:

Elements present in the group $18$ of the periodic table are named as noble gases. Noble gases have completely filled valence shell. Every element attains an electronic configuration same as that of a noble gas. To do so elements either gain or lose electrons.