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Structure and properties
Structure and properties
4
Chemistry
Not Applicable
06/10/2016

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Term
Giant ionic structures
Definition
  • Strong electrostatic forces hold the ions together.
  • ¬†High temperature is needed to break these bonds.
    • Ionic substances are solid at room temperature.
    • They have high melting and boiling points.
  • When dissolved the ions are free to move so can carry electrical charge.
Term
Metallic structures
Definition
  • Metallic atoms arranged in layers can slide over each other when force is applied.
    • This makes them bendable without breaking.
  • Shape memory allows can be deformed and return to their original shape when heated.
Term
Simple covalent structures
Definition
  • The covalent bonds between the atoms are strong so they are hard to break.
  • The intermolecular forces between molecules are much weaker, meaning simple structures can easily be broken.
    • This gives them low melting and boiling points.
Term
G
Definition
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