C2 - Bonding Structure and Properties of Matter
- Created by: JellyBeanBears
- Created on: 15-05-18 16:12
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- Bonding Structure and Properties of Matter
- Ions
- a charged particle
- produced when an atom gains or looses electrons to gain a full outer shell
- Group 1 = 1+ Group 2 = 2+ Group 6 = 2- Group 7 = 1-
- Metals form +ions
- Non-metals form -ions
- Polymers
- Long chains of repeating units
- strong covalent bonds
- draw short repeating sections (repeating unit
- intermolecular forces
- larger than ones in simple covalent molecules
- weaker than ionic / covalent so they have lower boiling and melting points
- don't conduct electricity
- solid at room temperature
- Ionic Compounds
- have a giant ionic lattice
- strong electrostatic forces of attraction between oppositely charged ions in all directions
- E.g NaCl, (sodium chloride / table salt)
- Properties
- high melting and boiling points
- Cant conduct when solid but can when melted due to free moving electrons
- Dissolve easily in water
- Look at charges to find the formula of the compound
- have a giant ionic lattice
- Covalent Bonding
- non-metals sharing pairs of electrons
- very strong electrostatic forces
- shown in overlapping dot and cross diagrams or displayed formulas
- Ionic Bonding
- between metal and non-metal
- show in dot and crass diagrams
- metal looses electrons and becomes a +ion
- non-metal gains electron and becomes -ion
- Metallic Bonding
- Giant structure
- electrostatic attraction between the +metal ions and shared -electrons are strong
- very strong
- Ions
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