bonding c2.2
- Created by: faiqa1331
- Created on: 12-10-18 07:47
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- bonding c2.2
- metals and non metals (c2.2.1)
- metal elements
- shiny
- solid at room temperature (except for mercury)
- malleable
- good conductors
- forms positive ions
- metallic bonding
- non-metal elements
- dull
- half are solid, half are gas
- brittle
- insulators
- forms negative ions
- convalent bonding
- metal elements
- ionic bonding (c2.2.4)
- non-metal + metal
- strong electrostatic forces of attraction between opposely charged ions
- bonding, structure, and change of state (c2.2.5 + c2.2.6)
- metals
- strong
- high melting and boiling point
- conduct electricity when solid or lquid
- ionic compounds
- strong
- high melting points and boiling points
- conduct electricity when molten or dissolved
- giant covalent structures
- strong
- high melting points and boiling points
- dooes not conduct electricity (except graphite)
- simple molecules
- weak
- low melting and boling points
- conducts electricity
- only contains a few atoms
- metals
- polymer molecules (c2.2.7)
- made of small monomers in a chain
- thermosoftening polymers
- weak covalent bonds
- becomes soft when heated
- thermosetting polymers
- strong covalent bonds
- burn when heated
- structure of metals (c2.2.8)
- giant metallic lattice
- metallic bonds
- strong electrostatic forces between delocalaised electrons and a metal ion
- delocalised electrons are free to move
- metals and non metals (c2.2.1)
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