Chapter 6, Problem 3STP

Interpretation Introduction

Interpretation:

The general electronic configuration of halogen is to be determined.

Concept Introduction :

The electron configuration of an element defines how its electrons are arranged throughout its atomic orbitals. Standard notation is used to represent atomic electron configurations, placing all electron-containing atomic subshells in sequential order. The number of electrons held by the subshell is indicated by superscript.

Answer to Problem 3STP

Option (B)

Explanation of Solution

Elements of the halogen family are fluorine, chlorine, bromine, iodine, and astatine.

The general electronic configuration of some of the elements of the halogen family is as shown:

  $\begin{array}{l}\text{F}\left(9\right):1s^{2}2s^{2}2p^5\\ \text{Cl}\left(17\right):1s^{2}2s^{2}2p^{6}3s^{2}3p^5\end{array}$

Thus,the electronic configuration of the halogen family always ends with $n{s}^{2}n{p}^5$