Chemistry AS EL CI 3.1
- Created by: A.B.
- Created on: 23-10-13 15:37
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- EL Chemical Bonding and Properties CI 3.1
- What type of bond?
- Metal + Metal
- Metallic
- Metal + Non-metal
- Non-metal + Non-metal
- Covalent
- Metal + Metal
- Properties depend on bonding
- Ionic Lattice
- eg NaCl
- Ionic bonds
- High melting point
- Usually soluble in water
- Only conducts electricity if molten or in a solution
- Giant Covalent Network
- eg SiO or diamond
- Covalent bonds
- High melting point
- Insoluble in water
- Don't conduct electricity, apart from graphite.
- Simple Molecular
- eg CO or H O
- Covalent bonds
- Low melting point
- Usually insoluble
- Don't conduct
- Metallic Lattice
- eg Na or Mg
- Metallic bonds
- High melting point
- Insoluble in water
- Conducts electricity
- Ionic Lattice
- Ionic Bonding
- Charged ions result of atom trying to gain full outer shell of electrons by losing or gaining
- The cations (positive ions) and anions (negative ions) produced are held together in a giant ionic lattice.
- Electrostatic attraction between cations and anions.
- Sodium Chloride
- Ionic Bonding
- Charged ions result of atom trying to gain full outer shell of electrons by losing or gaining
- The cations (positive ions) and anions (negative ions) produced are held together in a giant ionic lattice.
- Electrostatic attraction between cations and anions.
- Sodium Chloride
- Ionic Bonding
- Covalent Bonding
- Share a pair of electrons
- Dative covalent bond
- Both electrons in pair come from same atom
- Held together by electrostatic attraction between the positive nuclei of the two atoms and the shared pair of electrons.
- Metallic bonding
- Regular lattice
- Delocalised electrons
- What type of bond?
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