bonding

• what is the type of bonding between 2 metals

  metallic bonding
• what is the type of bonding between 2 non metals

  covalent bonding
• what is the type of bonding between a metal and a non metal

  ionic bonding
• what is giant covalent examples

  carbon as graphite or diamond
• what is simple covalent exaples

  I2, Br2, O2, H2, F2 ...
• what group has monoatomic atoms and what does this make them

  noble gases - this makes them stable
• what does lip gin stand for

  loss is positive, gain is negative
• what is the valency of group 1 elements

  1
• what is the valency of group 2 elements

  2
• what is the valency of group 3 elements

  3
• what is the valency of group 4 elements

  4
• what is the valency of group 5 elements

  3
• what is the valency of group 6 elements

  2
• what is the valency of group 7 elements

  1
• draw a diagram to show ionic bonding in NaCl

  remember to also show before

  A) loses 1 e-

  B) gains 1 e-

  
• draw a diagram to show ionic bonding in CaCl2

  remember to also show before

  A) loses 2 e-

  B) gains 1 e- each

  
• draw a diagram to show ionic bonding in Al2O3

  remember to also show before bonding

  A) loses 3 e- each

  B) gains 2 e- each

  
• what is the formula of carbonate


  CO3^2-
• what is the formula of hydrogen carbonate

  H2CO3^-
• what is the formula of nitrate


  NO3^-
• what is the formula of nitrite


  NO2^-
• what is the formula of sulfite

  SO3^2-
• what is the formula of sulfate

  SO4^2-
• what is the formula of hydrogen sulfate

  H2SO4^-
• what is the formula of hydroxide

  OH-
• what is the formula of ammonium


  NH4^+
• what is the formula of phosphate


  PO4^3-
• what is the formula of hydrogen phosphate


  HPO4^2-
• what is the formula of hypochlorite

  ClO^-
• what is the formula of chlorate


  ClO^3-
• what is the formula of dichromate


  Cr2O7^2-
• what is the formula of maganate

  MnO4^-
• what is the formula of thiosulfate


  S2O3^2-
• what is the formula of iodate


  IO3^-
• what is the formula of chromate


  CrO4^2-
• what is ionic bonding


  the electrostatic attraction between oppositely charged ions (cations and anions) in a regular 3D lattice, caused by e- transfer
• what does the strength of electrostatic forces of attraction depend on in ionic bonding

  the size of the ions and the size of the charge
• electrostatic attractions increase in strength as --- in ionic bonding


  the charge on the ions increases and the size of the ions decreases
• what are the features favouring ionic bonding

  the metal has a low ionisation energy

  the metal forms large ions of large charge

  the non-metal has a high e- affinity

  the non-metal forms small ions of high charge
• what is charge density

  charge / size