C9 supplement

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5 Terms

1
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Why do metals conduct electricity?

Because they contain delocalized electrons

2
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Describe the structure for the metal

A metal is a regular lattice of positive metal ions surrounded by a sea of delocalized electrons

3
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What is the metal structure held together by?

A strong electrostatic force between the positive and negative ions

4
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State the 3 properties for metal

High melting point

High conductivity

Malleable

5
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Why are alloys harder than pure metal?

Alloys are a mix of different metals, so it contains different sized atom, making them harder to slide past each other