Bonding
Teacher recommended
?- Created by: Natasha Granville
- Created on: 17-03-18 15:45
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- Bonding
- Ionic
- the strong electrostatic attraction between oppositely charged ions
- evidence for the existence of ions
- migration of ions
- ionic compounds conduct electricity when molten or in solution
- physical properties of ionic compounds
- brittle
- dislocation causes layers to slide over each other, splitting the crystal
- high melting temperature
- strong forces of attraction between oppositely charged ions
- soluble in water
- polar water molecules form a hydration shell around ions
- brittle
- migration of ions
- factors affecting the strength of ionic bonds
- greater charge
- stronger ionic bond
- smaller ionic radius
- stronger ionic bond
- greater charge
- Covalent
- the strong electrostatic attraction between two nuclei and the shared pair of electrons between them
- factors affecting strength
- Dative covalent
- both electrons in the shared pair are provided by one atom
- shown by an arrow from the atom with the lone pair to the atom with the empty orbital
- nuclei joined by multiple bonds have a greater electron density
- stronger covalent bond
- smaller atomic radii
- stronger covalent bond
- Dative covalent
- Metallic
- the strong electrostatic attraction between metal ions and delocalised elctrons
- factors affecting the strength of metallic bonds
- greater number of protons
- stronger metallic bond
- greater number of delocalised electrons
- stronger metallic bond
- smaller ion
- greater number of protons
- Dative covalent
- both electrons in the shared pair are provided by one atom
- shown by an arrow from the atom with the lone pair to the atom with the empty orbital
- Ionic
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