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Definition of metallic bonding
A lattice of positive ions in a sea of delocalised elections
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What does metallic bonding consist of?
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Examples of metallic bonding
Sodium, Lithium, Potassium etc.
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Properties of metallic bonding
Can conduct electricity - delocalised electrons so they can move, Layers can move - meaning they are ductile
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Definition of Ionic bonding
A lattice of positive & negative ions with very strong intermolecular forces
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What does ionic bonding consist of?
Metals & Non-metals
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Examples of ionic bonding
Sodium chloride, Magnesium Oxide etc.
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Properties of ionic bonding
Dissolves in water - can conduct electricity when in solution as the ions are free to move
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Definition of covalent bonding
A shared pair of electrons
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What does covalent bonding consist of?
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Examples of simple covalent bonding
Chloride, Ammonia, Methane, Water etc.
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Properties of simple covalent bonding
Low boiling points & melting points due to there being weak intermolecular forces - little energy is needed to overcome them
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Examples of giant covalent structures
Diamond, graphite
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Properties of Diamond
Fixed shape - very strong (used for drills), no conduction of electricity as there's no delocalised electrons, strong intermolecular forces - high melting & boiling points, each carbon has 4 covalent bonds, tehtrahedral structure
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Properties of Graphite
Layers of hexagons - can slide over each other due to the weak intermolecular forces between the layers (used in pencils), conducts electricity- each carbon atom has a delocalised electron
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What does metallic bonding consist of?



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Examples of metallic bonding


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Properties of metallic bonding


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Definition of Ionic bonding


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