Giant Covalent: Bonding structure and the properties of matter: Chemistry: (9:1)

• Giant structure

  A three-dimensional network of atoms or ions
• Lattice


  Regular arrangement of particles.

  
• Giant covalent structure


  A huge 3D network of covalently bonded atoms

  
• Bonding in giant covalent structures

  Covalent bonding
• Covalent bond


  A shared pair of electrons

  
• States of giant covalent substances at room temperature

  Solid
• Melting points of giant covalent substances

  Very high
• Bonds broken when giant covalent structures are melted

  Covalent bonds
• Examples of giant covalent structures

  Diamond, graphite, silicon dioxide

  
• Reason for giant covalent structure's high melting point

  Many strong covalent bonds require lots of energy to break
• Solubility of giant covalent substances

  Insoluble
• Formula of silicon dioxide

  SiO2