Final answer:
Ionic bonds and compounds have a high melting point but are easily shatters/brittle and not good conductors in solid form.
Step-by-step explanation:
One property of ionic bonds and compounds is high melting point. Ionic compounds have a regular, repeating structure held together by strong electrostatic attractions between positively and negatively charged ions. This strong bond requires a significant amount of energy to break and therefore results in a high melting point.
However, ionic compounds are easily shatters / brittle because the arrangement of ions in the crystal lattice does not allow for flexibility. When a force is applied, the ions cannot rearrange easily and the crystal structure may break.
Ionic compounds are not good conductors in liquid form because the mobility of the ions is limited in the solid state and they cannot carry an electric current. It is only when melted or dissolved in water that the ions become free to move and conduct electricity.
Learn more about Properties of Ionic Bonds and Compounds