what can you tell me about their boiling point?
Boiling points exhibit similar trends to melting points in terms of the size of ions and strength of other interactions. When vapourized, the ions are still not freed of one another.
Melting and boiling points
Boiling points exhibit similar trends to melting points in terms of the size of ions and strength of other interactions. When vapourized, the ions are still not freed of one another.
describe in general terms the structure of ionic solids such as nacl Ions typically pack into extremely regular crystalline structures, in an arrangement that minimizes the lattice energy.
Electrostatic forces between particles are strongest when the charges are high, and the distance between the nuclei of the ions is small. In such cases, the compounds generally have very high melting and boiling points and a low vapour pressure. Electrostatic forces between particles are strongest when the charges are high, and the distance between the nuclei of the ions is small. Electrostatic forces between particles are strongest when the charges are high, and the distance between the nuclei of the ions is small, which results in very high melting and boiling points
Ionic compound Ionic compound Ionic compound
Melting and boiling points Melting and boiling points Melting and boiling points
Electrostatic forces between particles are strongest when the charges are high, and the distance between the nuclei of the ions is small. In such cases, the compounds generally have very high melting and boiling points and a low vapour pressure. Electrostatic forces between particles are strongest when the charges are high, and the distance between the nuclei of the ions is small.  Electrostatic forces between particles are strongest when the charges are high, and the distance between the nuclei of the ions is small. In such cases, the compounds generally have very high melting and boiling points and a low vapour pressure. 
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Ionic compound [SEP] Melting and boiling points
Boiling points exhibit similar trends to melting points in terms of the size of ions and strength of other interactions. When vapourized, the ions are still not freed of one another. For example, in the vapour phase sodium chloride exists as diatomic "molecules".