Chapter 18, Problem 51R

To determine

To draw: the electron dot diagram for ${\text{BaCl}}_{\text{2}}$.

To explain: how the diagram shows that all atoms in the compound are stable.

Explanation of Solution

Introduction:

A chemical bond due to the electrostatic attraction between oppositely charged ions is defined as ionic bonding. The stable configuration of any elements should contain two electrons or eight electrons in their outer shell or valence shell.

The elements of barium are related to group 2. Hence, the valence electrons in these elements are 2. The elements of chlorine are related to group 17. The valence electrons in these electrons are 7. To get, the stable configuration of ${\text{BaCl}}_{\text{2}}$, barium will lose two electrons and form barium ion. The two electrons will gain new two chlorine atoms and they will turn as chlorine ions. These barium ion and chlorine combined to form ${\text{BaCl}}_{\text{2}}$.

The electrons dot diagram for ${\text{BaCl}}_{\text{2}}$ is as follows:

Conclusion:

Hence, the dot diagram is drawn.