Chapter 4, Problem 73E

Interpretation Introduction

Interpretation:

The total number of electrons present in the second energy level is to be stated.

Concept introduction:

Electrons in an atom are present in particular orbitals. Sublevels contain orbitals which possess equivalent energy. Maximum two electrons are present in each orbital. The electrons present in $s$ orbital are known as $s$ electrons. The energy level possesses a sublevel that contains orbital. The sublevels are named as $s\text{, }p\text{, }d\text{, }f$ and so on. The first energy level contains one sublevel, which is $1s$. The second energy level contains two sublevels, which are $2s$ and $2p$. The third energy level contains three sublevels, which are $3s\text{, }3p$ and $3d$. The fourth energy level contains four sublevels, which are $4s\text{, 4}p\text{, }4d$ and $4f$.