Summary
Summary GIANT COVALENT MOLECULES-MIND MAP
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A mind map providing the essential knowledge to help you study faster for your chemistry GCSE exam
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GRAPHITE IS AN EXCEPTION CANNOT CONDUCT ELECTRICITY ach carbon atom is joined to four other
e
carbon atoms
tetrahedral network structure STRUCTURE
no free electrons DIAMOND
for cutting tools USES
ach carbon atom forms three covalent
e
bonds
layers of hexagonal rings
no covalent bonds between the layers STRUCTURE
t here is one non-bonded - or delocalised -
electron from each atom
GRAPHITE
AN CONDUCT ELECTRICITY BECAUSE OF
C
THE DELOCALISED ELECTRONS THAT ARE CARBON
FREE TO MOVE INSIDE THE STRUCTURE
for electrodes in batteries and for electrolysis USES
useful as a lubricant
has a very high melting point
SINGLE LAYER OF GRAPHITE GRAPHENE
conduct electricity
hexagonal rings of carbon atoms hollow shape
60 carbon atoms
Molecules of C60 are spherical
buckminsterfullerene 5 carbon atoms molecules of carbon atom FULLERENES
slippery
and has a low melting point
ring with
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