Bond Angles

• 2 bonding pairs= linear, 180 degrees
• In bent linear molecules, each lone pair reduces bond angle by 2.5 degrees
• In bent linear molecules, 1 lone pair=107 degrees
• In bent linear molecules, 2 lone pairs= 104.5 degrees
• 3 areas of electron density= planar triangular
• Tetrahedral molecules have bond angle of 109.5 degrees
• Planar triangular molecules have bond angle of 120 degrees
• 4 areas of electron density, 3 bonding pairs and 1 lone pair= pyramidal
• 5 areas of electron density= trigonal bipyramidal
• Trigonal bipyramidal has bond angle of 120 and 90 degrees
• Pyramidal molecules have bond angle of 107 degrees
• 6 areas of electron density= octahedral shape
• Octahedral molecules have bond angle of 90 degrees