2713352
Descrição
Mapa Mental por Harry Plested, atualizado more than 1 year ago
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Criado por Harry Plested
mais de 9 anos atrás
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Gcse chemistry Bonding
- Covalent
- Non metal and Non metal
- Share Electrons no ions formed
- The outer shells overlap and mean the
nuclei are attracted to each other
- Simple Molecular
- only small amounts of atoms eg CO2
- So diatomic substances would be
simple molecular bonds
- So diatomic substances would be
simple molecular bonds
- Low melting and boiling points
- Hence most are gases or low
boiling point liquids or low melting
point solids
- When state changed however bond
tends not to be broken
- Hence most are gases or low
boiling point liquids or low melting
point solids
- only small amounts of atoms eg CO2
- Giant covalent
- Lots of atoms
- High Melting/Boiling point
- Eg. diamond
- Graphite
- Low attractive forces between layers
- Conducts electricity only
valence electrons used in
bond so inner is
de-localised
- Low attractive forces between layers
- Lots of atoms
- Non metal and Non metal
- Ionic
- Metal and Non-Metal
- Electrically charged
- High Melting point
- Exact temperature depends on
strength of the bond between the
elements forming the compound
- Exact temperature depends on
strength of the bond between the
elements forming the compound
- Eg. NaCl
- Form Na+ and Cl-
- Form Na+ and Cl-
- Metal and Non-Metal
- Metallic
- Metal and metal
- 3d lattice structure
- positive ions arranged in regular
pattern in a "sea of electrons"
- Valence electrons detached
and delocalised throughout
the structure
- Conduct electricity
- Malleable and ductile
- High Melting points
- Metal and metal
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