AP Chemistry / Unit 2: Compound Structure and Properties
2.3 Structure of Ionic Solids
Notes
Ionic solids are a lattice of alternating cations and anions.
- High melting points, brittle, conduct only when melted or dissolved.
Practice
Solid NaCl doesn't conduct electricity because:
Ions are locked in the lattice.
Ionic solids are brittle because:
Repulsion cracks the crystal.
Molten NaCl conducts because:
Mobile charge carriers.
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