Bonding

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  • Bonding
    • Metallic
      • Giant lattice structure
      • achieved by forming positively charged ions
      • ions arrange themselves with a sea of delocalised electrons around them
    • Covalent
      • between 2 non-metals
      • sharing electrons
    • Polar covalent
      • Electrons not shared equally
      • one atom has a greater pull on the electrons
      • creates a dipole in the molecule
      • atom with highest electro negativity has greater affinity for electrons
    • ionic lattice structure
      • Ionic
        • electrons are transferred
        • when the electro negativity is greater than1.5
      • electrostatic attraction between the +ve nuclei and the -ve electrons is non-directional
    • Ionic
      • electrons are transferred
      • when the electro negativity is greater than1.5

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