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Bonding and physical properties
turning a solid to liquid (fusion)
When heating, a solid or supplying energy,
it vibrates to a more fixed position
therefore increasing the distance between
particles so it expands
Supplying more energy can turn a solid
into a liquid ­ this is required to weaken

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Properties of diamond
Very hard material
Very high melting temperature (over 3,700k)
Does not conduct electricity because there are no delocalised electrons to carry the charge
Consists of pure carbon atoms which are bonded and arranged differently
Strong covalent and weak van der Waals forces
Bond at angle 120°…


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