Flashcards
AQA GCSE Chemistry (9-1) C2 - Bonding, Structure and Properties of Matter
Cards in this deck (14)
- 1What is Covalent bonding?Covalent bonding is the sharing of electrons between 2 non-metals
- 2List the properties of small covalent molecules?- low melting + boiling points
- usually liquids/ gas at room temp
- weak forces of attraction
- do not conduct electricity because molecules have no overall electrical charge - 3What is Ionic bonding?Ionic bonding is when atoms lose/ gain electron to have a full outershell. Metal atoms lose electron to become positively charged ions. Non-metal atoms gain electons to become negatively charged ions
- 4What is Metallic bonding?The strong electrostatic forces of attraction between metal ions and a sea of delocalised electrons.
- 5list the properties of large covalent molecules?- always solid at room temperature
- high melting + boiling points - 6What are the properties of a solid.- have a fixed shape (cannot be compressed)
- strong forces of attraction between particles
- particles very close together
- vibrate around a fixed point (small amount of kinetic energy) - 7describe the structure and properties of a diamond- giant rigid covalent structure (lattice)
- each carbon atom covalently bonded to 4 other carbon atoms
- very high melting and boiling point
- cannot conduct electricity as no free electrons to carry charge - 8What are the properties of a liquid.- hard to compress
- take the shape of their container
- particles are close together but not as close as solids so forces of attraction are not as strong
- have a random shape
- vibrate but have more kinetic energy than solids - 9What are the properties of gases?- easy to compress
- take the shape of their container
- have a random arrangement
- particles very far apart (no forces of attraction)
- move quickly in all directions - 10What is this an example of? How do you know?ionic bond as it involves gaining/losing electrons from the elements
- 11name the 2 allotropes of carbondiamond + graphite
- 12give the structure and properties of silicon dioxide (silica)- oxygen and silicon covalent bond together
- each oxygen is joined to 2 silicon atoms
- each silicon is joined to four oxygen atoms
- high melting and boiling point - 13what is this an example of? How do you know?covalent bond as it involves sharing of electrons
- 14give the structure and properties of graphite.- a form of carbon
- high melting and boiling point
- 1 carbon atoms covalently bonded to 3 carbon atoms layered hexagonal structure
- no covalent bonds between layers + held together by weak intermolecular forces so are slide past each other
- slippery and soft so good as lubricant
- can conduct electricity
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- Description
- A set of question to test your knowledge on the new 9-1 GCSE Chemistry Topic 2. Bonding, Structure and Properties of Matter
- Created by
- Oluoma Onugha
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