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Structure and Bonding Chemistry (AQA GCSE)

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  • Sodium chloride is...
    An ionic structure
    A covalent structure
    A metallic structure
  • An example of a giant covalent structure is...
    Carbon dioxide
    Methane
    Diamond
  • What is the charge of an oxygen ion?
    1-
    1+
    2-
    2+
  • Diamond is so strong because...
    It is arranged in layers
    There are weak forces of attraction
    There are weak intermolecular forces
    Each carbon shares electrons with 4 other carbons
  • Graphite is not as strong as diamond because...
    The carbons are arranged in layers
    The carbons have no free electrons
    Each carbon is covalently bonded to 4 other carbons
  • Ionic structures are...
    Large molecules
    Small lattices
    Small molecules
    Giant lattices
  • Solid giant ionic structures cannot conduct electricity unless...
    They are molten or dissolved in water
    There are free electrons added
    The surface area is increased
  • Ions become like elements in group...
    1
    6
    0
    7
  • Potassium chloride is...
    An example of a metallic compound
    An example of an ionic compound
    An example of a covalent compound
  • Covalent structures can be...
    Only giant structures
    Either simple molecular structures or giant structures
    Only simple molecular structures
  • How many atoms does a single molecule of carbon dioxide have?
    6
    2
    1
    3
  • Why can metals conduct electricity?
    The positive metals ions repel each other
    Delocalised electrons carry a charge
    The positive metal ions carry a charge
  • Magnesium is in group 2 and can...
    Gain 2 electrons
    Lose 2 electrons
  • What happens to non metals in an ionic bond?
    They gain electrons
    They lose electrons
  • What happens in a covalent bond?
    Electrons are shared
    Electrons are gained
    Electrons are lost
  • What is a metallic bond?
    A bond between non metals
    A bond between a metal and non metal
    A bond between metals
  • Simple covalent structures are usually...
    Liquid or gases at room temperature
    Solids at room temperature
    Frozen at room temperature
  • How many atoms does a single molecule of oxygen have?
    1
    4
    3
    2
  • Ions have...
    One shell
    A full outer shell
    Three shells
    Two shells
  • What is a covalent bond?
    A bond between a metal and non metal
    A bond between non metals
    A bond between metals
  • What is an ionic bond?
    A bond between non metals
    A bond between metals and non metals
    A bond between a metal and non metal
  • What is the charge of a magnesium ion?
    1+
    2-
    1-
    2+
  • Oxygen is in group 6 and can...
    Lose 2 electrons
    Gain 2 electrons
  • What happens to metals in an ionic bond?
    They lose electrons
    They gain electrons
  • What's the maximum number of covalent bonds carbon can form?
    1
    4
    3
    3
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