VSEPR

• Number of electrons domain is 2 bond angles and electrons geometry is ?

  Bond angle is 180

  Electrons domain geometry is linear
• Electrons domain 3 , bond angle and electron domain geometry

  Bond angle 120

  Electron domain geometry is trigonal planar
• Number of electrons 4 , bond angle, electron domain geometry

  Bond angle 109

  Geometry tetahedral
• Electron domain is 5 bond angle and geometry

  Bond angle 90

  Geometry is trigonal bipyramidal
• Electron domain is 6 bond angle and geometry?

  Bond angle is 90

  Geometry is octahedral
• Vsper theory


  is used to predict the electron domain geometry of a molecule
• Molecular geometry 


  Is focused on the atoms located around a central atom

  Only incorporates bonded pairs of electrons

  Is only different from electron domain geometry if there are lone
• 4 electrons, 2 bonds, 2 lone pairs

  MG tetahedral

  EG bent

  Bond angle is 105
• 3 electrons, 1 lone pair

  MG tetahedral

  EG is bent

  Bond angle is 118
• 5 electron pairs 


  Trigonal bi pyramidal

  Bond angle 90 or 120
• 6 electrons and 2 lone pairs

  Eg square planer

  Mg octahedral

  90
• 4 electron pairs, 3 bonds and 1 lone pair

  Mg tetahedral

  Eg trigonal pyramidal

  Bond angle 107
• 4 electron pairs, 3 bonds and 1 lone pair

  Mg tetahedral

  Eg trigonal pyramidal

  Bond angle 107