Course review

2.3 The metallic model

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Learning objective

2.3.1—Metallic bonding

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• Electrostatic attraction between cation lattice and delocalized electrons • Properties: electrical/thermal conductivity, malleability

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Learning objective

2.3.2—Bond strength

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• Depends on ion charge and metal ion radius • Trends in melting points (s and p block metals)

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Learning objective

2.3.3 (HL)—Transition elements

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• Delocalized d-electrons • High melting points, electrical conductivity

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