When some dry soil is added to water in a breaker and stirred with aglass rod, bubbles are seen coming out of the soil . What do these bubbles consist of?
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This pattern is repeated in all directions, giving a giant three-dimensional lattice structure in sodium chloride crystals.
Because of the strong electrostatic forces between them, it takes a great deal of energy to separate the positive and negative ions in a crystal lattice. This means that ionic compounds have high melting points and boiling points.
Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current. But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.
When a crystal of an ionic compound dissolves in water, the ions separate. Again, the ions are free to move - so a solution of an ionic compound in water also conducts electricity.
Because of the strong electrostatic forces between them, it takes a great deal of energy to separate the positive and negative ions in a crystal lattice. This means that ionic compounds have high melting points and boiling points.
Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current. But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.
When a crystal of an ionic compound dissolves in water, the ions separate. Again, the ions are free to move - so a solution of an ionic compound in water also conducts electricity.
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