· Require lots of energy to break the lattice apart.
· The ionic compounds have a very high melting and boiling point.
· Once the lattice has been broken, the ionic solid becomes a liquid.
· The ions are free to move in this liquid therefore the liquid is able to carry electrical charge (through the molten liquid).
· The solid lattice cannot carry an electrical charge because the ions in the lattice are held together tightly with strong electrostatic forces in the ionic bonds and cannot move freely as a result. They can only vibrate in a fixed position.
· Many ionic compounds will dissolve in water.
· When an ionic compound is dissolved in water, the lattice is split up by water molecules and the ions can move more freely.
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