Chapter 7.2, Problem 17SSC

Interpretation Introduction

Interpretation:

The formation of an ionic compound from Sr and Cl needs to be represented.

Concept introduction:

Electron configuration of any element basically describes how electrons are distributed in its atomic orbital’s. This electronic configuration of atoms follows a set notation in which all electron containing atomic sub-shells are placed in the sequence.

Answer to Problem 17SSC

Formation of ionic compound from the metal strontium and nonmetal chlorine is as follows:

One $\text{Sr}$ atom loses $2e^{-}$ and formation of ${\text{Sr}}^{2+}$ ion takes place and two $\text{Cl}$ atoms each gain $1e^{-}$ to form two ${\text{Cl}}^{-}$ ions.

The ions combine to form ${\text{SrCl}}_{\text{2}}$.

Explanation of Solution

Representation should include one $Sr$ atom losing $2e^{-}$ and forming an $S{r}^{2+}$ ion and two $Cl$ atoms each gain $1e^{-}$ and form two $C{l}^{-}$ ions.

The ions combine to form ${\text{SrCl}}_{\text{2}}$.

Electronic configuration is:

Orbital notation is:

Electron dot structure is: