Ionic properties

Giant ionic lattice

Giant ionic lattice

huge 3D regular structure held together by the electrostatic forces of attraction between positive and negative ions

Melting and boiling points of ionic substances

high

Reason for melting and boiling points of ionic substances

Strong electrostatic forces between opposite ions need lots of energy to break

Movement of ions in a solid

Ions vibrate around fixed positions

Molten

Made liquid by heat

Movement of ions when molten

Ions can move past each other

Movement of ions in solution

Ions break apart and move freely

Conductivity of solid ionic compounds

don't conduct

Reason for conductivity of solid ionic compounds

Ions are fixed in place

Conductivity of molten/dissolved ionic compounds

good conductors

Reason for conductivity of liquid/dissolved ionic compounds

Ions are free to move and carry charge

Electrostatic force of attraction

attractive force between oppositely charged particles