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Structure and bonding I - Coggle Diagram
Structure and bonding I
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Covalent bonds
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often produce molecules, which can be elements and compounds
low boiling and melting points because the weak intermolecular forces of attraction between molecules are weak and need little energy to overcome them
do not conduct electricity; this is because covalent compounds do not have charged particles capable of transporting electrons
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Fullerenes
They are sheets of graphene rolled to form hollow balls, bucky balls, and hollow tubes, nanotubes.
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nanotubes
Conduct electricity because of delocalised electrons. Strong because the structure has many strong covalent bonds
Allotrope
Different forms of the same element, where the atoms combine in different ways, so at the same temperature and pressure they can exist in different forms.