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4 Cards in this Set

  • Front
  • Back

Ionic

- Strong electrostatic forces


- High melting point


- Soluble in polar solvents, insoluble in non-polar


- Conducts as a liquid or aqeuous solution

Molecular

- Strong intramolecular, weak intermolecular bonds


- Low melting point


- Polar molecules dissolve in polar solvents, vice versa


- Never conduct


- Solids shatter as only weakly held together

Metallic

- Found on LHS of periodic table


- Very strong non-directional forces


- High melting point


- Never soluble


- Conduct as solids and liquids


- Can be shaped; non-directional forces

Covalent Networks

- Generally high melting point


- Generally insoluble


- Capable of conductivity


- Come in 1D polymers, 2D sheets or 3D lattices.


- Graphite is a covalent network: Can conduct and has weakly held together sheets of carbon atoms.