942948
Descrição
Mapa Mental por katherinethewise, atualizado more than 1 year ago
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Criado por katherinethewise
mais de 10 anos atrás
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Covalent Bonding
- Giant Molecular Structure
- Strong bonds.
- High melting/boiling points.
- The bonds between molecules are
very strong, so lots of energy is
needed to break them.
- The bonds between molecules are
very strong, so lots of energy is
needed to break them.
- Insulators (except graphite).
- Graphite is arranged in layers, and each carbon atom in graphite
has a delocalised 4th electron. This means that the delocalised
electrons are free to move throughout the structure, carrying an
electrical charge.
- Graphite is arranged in layers, and each carbon atom in graphite
has a delocalised 4th electron. This means that the delocalised
electrons are free to move throughout the structure, carrying an
electrical charge.
- When bonded atoms all share several pairs of electrons,
the structure formed could go on indefinitely as a giant
molecular structure.
- Strong bonds.
- Simple Molecular Structure
- Bonds inside of the molecule are strong.
- Bonding to other molecules is weak.
- Bonding to other molecules is weak.
- Low
melting/boiling
points.
- Little energy is required to break the
bonds between molecules.
- Little energy is required to break the
bonds between molecules.
- Insulators.
- Localised outer electrons.
- Localised outer electrons.
- When atoms share just a few electrons, clusters
of atoms are made - simple molecules.
- Bonds inside of the molecule are strong.
- This occurs when non-metal particles share
electrons in order to give each other full outer
shells (i.e H20).
- Covalent bonds are very strong. They occur
between the positive nuclei of the bonded atoms
and the negative electrons that are shared in
between.
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