Metallic Bonding
Metallic bonding occurs when positive metal ions are held together by electrostatic attraction to a sea of delocalised electrons. These pages separate the key ideas so that students can revise metallic structure and link it clearly to metal properties.
The section also covers ionic and metallic bonding, simple molecular and giant lattices, and intermolecular forces with hydrogen bonding and the anomalous properties of water.
Revision Notes
2 revision notes, in the order the specification teaches them.
Metallic Bonding and Structure
Revise positive metal ions, delocalised electrons and the electrostatic attraction that holds metallic structures together.
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Physical Properties of Metals
Connect metallic bonding and structure with electrical conductivity, thermal conductivity, malleability, ductility and melting point.
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Structure Types Map
OCR A Level Chemistry A · 3.1.1 Periodicity · Metallic bonding and structure types
The whole section on one A4 page: metallic bonding, the giant covalent lattices of carbon and silicon, the four kinds of solid, and how to deduce a structure.
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Specification
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3.1.1
- d (i)
explanation of metallic bonding as strong electrostatic attraction between cations (positive ions) and delocalised electrons
- d (ii)
explanation of a giant metallic lattice structure, e.g. all metals
- f i
explanation of the melting and boiling points of giant metallic lattices in terms of structure and bonding
- f iii
explanation of the electrical conductivity of giant metallic lattices in terms of structure and bonding
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