chem paper 1 -structure and bonding

• what type of structure is ionic bonding

  giant
• what type of structure is metallic bonding

  giant
• what type of structure is giant covalent

  giant
• what type of structure is molecular covalent

  simple molecular
• what force holds the the particles together in ionic bonding

  ionic bonds/electrostatic forces between ions of opposite charge
• what force holds the the particles together in metallic bonding

  metallic bonds/electrostatic forces between metals ions and mobile electrons
• what force holds the the particles together in giant covalent

  covalent bonds
• what force holds the the particles together in molecular covalent

  intermolecular forces
• What is the strength in bonds in ionic bonding


  strong
• What is the strength in bonds in metallic bonding


  strong
• What is the strength in bonds in giant covalent


  strong
• What is the strength in bonds in molecular covalent


  strong
• the strength of forces holding particles together in ionic bonding is...


  strong
• the strength of forces holding particles together in metallic bonding is...


  strong
• the strength of forces holding particles together in giant covalent is...


  strong
• the strength of forces holding particles together in molecular covalent...

  weak
• Are delocalised electrons present in ionic bonding

  no
• Are delocalised electrons present in metallic bonding

  yes
• Are delocalised electrons present in giant covalent

  no (except in graphite)
• Are delocalised electrons present in molecular covalent

  no
• what is the melting point in ionic bonding

  high
• what is the melting point in metallic bonding

  high
• what is the melting point in giant covalent

  high
• what is the melting point in molecular covalent

  low
• Is ionic bonding a conductor of electricity

  only when molten is solution
• Is metallic bonding a conductor of electricity

  yes
• Is giant covalent a conductor of electricity

  no (except graphite )
• Is molecular covalent a conductor of electricity

  no
• melting points of the alkali metals decrease down group 1 and chemical reactivity increases.
• melting points of the halogens increase down group 7 and chemical reactivity decreases
• group 0 are called the noble gases and are chemically unreactive. Boiling points and density increases down the group
• down group 1-(4) -reactivity increases

  -more shells

  -weaker attraction between nucleus and outer electrons

  -so electrons easily lost
• down group 7-(4)

  -reactivity decreases

  -more shells -weaker attraction between nucleus and outer electron -so harder to attract an electron
• metal and non metal compound

  ionic----oppositely charged ions ----lattice----only conduct electricity in a molten or liquid state----ions moving=charge
• pure metal

  metal ---- delocalised electrons----transfer energy ----carry charge
• non metal and non metal

  small molecule----has few or small number of covalent bonds----weak intermolecular forces