A-Level Chemistry Bond Angles and Shape
2 electron pairs around the central atom
Shape: Linear Bond Angle: 180 Example: Carbon Dioxide (CO2)
Water
Shape: Non-linear/V-shaped Bond Angle: 104 Formula: H2O
6 electron pairs around the central atom
Shape: Octahedral Bond Angle: 90 Example: Sulfur Hexafluoride (SF6)
Hydroxonium Ion
Shape: Pyramidal Bond Angle: 107 Formula: H3O+
Ammonia
Shape: Pyramidal Bond Angle: 107 Formula: NH3
Cis-platin
Shape: Square Planar Bond Angle: 90 Formula: [PtCl2(NH3)2]
4 electron pairs around the central atom
Shape: Tetrahedral Bond Angle: 109.5 Example: Methane (CH4)
Ammonium ion
Shape: Tetrahedral Bond Angle: 109.5 Formula: NH4+
5 electron pairs around the central atom
Shape: Trigonal bipyramid Bond Angle: 120 and 90 Example: Phosphorous Pentafluoride (PF5)
3 electron pairs around the central atom
Shape: Trigonal planar Bond Angle: 120 Example: Boron Trifluoride (BF3)