What kind of crystalline solid is MgCl2?A.MolecularB.IonicC.MetallicD.NetworkSUBMITarrow_backPREVIOUS

To determine the type of crystalline solid that magnesium chloride ($\text{MgCl}_2$) represents, we need to understand the characteristics of different types of solids:

1. Molecular Solids: Composed of molecules held together by intermolecular forces. They tend to have low melting and boiling points.

2. Ionic Solids: Formed from the electrostatic attraction between positively and negatively charged ions. They usually have high melting and boiling points and are often soluble in water.

3. Metallic Solids: Characterized by a sea of delocalized electrons that allow them to conduct electricity and heat, and have a high melting point.

4. Network Solids: Composed of a continuous network of covalent bonds. They generally have very high melting and boiling points and are often non-conductive.

Analysis of MgCl2:

• Magnesium chloride is composed of magnesium ions ($\text{Mg}^{2+}$) and chloride ions ($\text{Cl}^-$).
• The bonding in $\text{MgCl}_2$ is primarily ionic, as it involves the transfer of electrons from magnesium to chlorine, resulting in the formation of ions that attract each other.

Conclusion:

Based on these characteristics, magnesium chloride $\text{MgCl}_2$ is classified as an ionic crystalline solid.

Final Answer

B. Ionic