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covalent bonding - Coggle Diagram
covalent bonding
covalent bonding
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why do the melting and boiling points of substances with simple molecular structures increase with increasing relative molecular mass
the intermolecular forces increase with the size of the molecules, so larger molecules have higher melting and boiling points
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Strong bonds between atoms that are covalently bonded are the result of electrostatic attraction between the positive nuclei of the atoms and the pairs of negative electrons that are shared between them
covalent bonds
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When atoms share pairs of electrons, they form covalent bonds. These bonds between atoms are strong.
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carbon allotropes
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graphite
each carbon atom is covalently bonded to 3 other carbons, forming layers of hexagonal rings, which have no covalent bonds between layers
the layers can slide over each other due to having weak intermolecular forces between them, rather than covalent bonds
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fullerenes
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based on hexagonal rings of carbon atoms, but may also contain rings of five or seven carbon atoms
carbon nanotubes
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their properties make them useful for nanotechnology, electronics and materials
carbon allotropes
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graphite
each carbon atom is covalently bonded to 3 other carbons, forming layers of hexagonal rings, which have no covalent bonds between layers
the layers can slide over each other due to having weak intermolecular forces between them, rather than covalent bonds
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-
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fullerenes
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based on hexagonal rings of carbon atoms, but may also contain rings of five or seven carbon atoms
carbon nanotubes
-
their properties make them useful for nanotechnology, electronics and materials
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