AS Chemistry- Metallic Bonding

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Define metallic bond
The electrostatic attraction between a lattice of positive metal ions and delocalised electrons.
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A positive ion is called a..
..cation
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A negative ion is called an..
..anion
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Explain why the strength of the metallic bonding increases from sodium to aluminium
From sodium to aluminium, the charge on the cations increases. Also, the number of delocalised electrons per ion increases. Therefore, the attraction between the cations and delocalised electrons increases. More heat energy is required to bre
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What structure do metals have?
Giant metallic latice
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Describe the melting point of metals
High melting point - a lot of energy is needed to overcome the strong electrostatic attraction between the metal cations and delocalised electrons
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Describe the solubility of metals
Low solubility - the metallic bonding is stronger than the attraction of the polar water molecules for the metal ions. (NB some metals will react with water)
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Describe the conductivity of metals
High electrical conductivity - delocalised electrons can carry electrical current.
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Card 2

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A positive ion is called a..

Back

..cation

Card 3

Front

A negative ion is called an..

Back

Preview of the front of card 3

Card 4

Front

Explain why the strength of the metallic bonding increases from sodium to aluminium

Back

Preview of the front of card 4

Card 5

Front

What structure do metals have?

Back

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