Stucture of diamond and graphite

structure of diamond and graphite

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  • Created on: 19-04-11 11:09
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Structures of diamond and graphite (Homework) Sophie
Carbon has an electronic arrangement of 2, 4. In diamond, Has a very high melting point (almost 4000°C). Very strong
each carbon shares electrons with four other carbon atoms - carbon-carbon covalent bonds have to be broken throughout
forming four single bonds. the structure before melting occurs.
This is a giant covalent structure - it continues on and on in Is very hard. This is again due to the need to break very strong
three dimensions. It is not a molecule, because the number of covalent bonds operating in 3-dimensions.
atoms joined up in a real diamond is completely variable - Doesn't conduct electricity. All the electrons are held tightly
depending on the size of the crystal. between the atoms, and aren't free to move.
Structure of diamond Is insoluble in water and organic solvents. There are no possible
attractions which could occur between solvent molecules and
carbon atoms which could outweigh the attractions between
the covalently bound carbon atoms.

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Structures of diamond and graphite (Homework) Sophie
Graphite has a layer structure; the diagram shows the Has a high melting point, similar to that of diamond. In order to
arrangement of the atoms in each layer, and the way the melt graphite, it isn't enough to loosen one sheet from another.
layers are spaced. Each carbon atom uses three of its You have to break the covalent bonding throughout the whole
electrons to form simple bonds to its three close neighbours. structure.…read more


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