Shapes of molecules

• What is the order of repulsion?

  1. Lone pair lone pair repulsion
  2. Lone pair bonding pair repulsion
  3. Bonding pair bonding pair repulsion
• What shape + angles would a molecule have if it has 2 bonding pairs?

  Linear

  180
• Shape + angle if 3 bonding pairs?

  trigonal planar

  120
• shape + angle if 4 bonding pairs?

  tetrahedral

  109.5
• shape + angle if 3 bonding pairs and 1 lone pair?

  trigonal pyramidal

  107
• Shape + angle if 2 bonding pairs and 2 lone pairs?

  bent

  104.5
• Shape + angle if 5 bonding pairs?

  trigonometry bipyramidal

  120 + 90
• Shape + angle if 3 bonding pairs and2 lone pairs?

  T- shaped

  90
• Shape + angle if 6 bonding pairs?

  octahedral

  90
• Shape + angle if 4 bonding pairs + 2 lone pairs?

  square planar

  90