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A-Level Chemistry Bond Angles and Shape Questions and Answers

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

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A-Level Chemistry Bond Angles and
Shape Questions and Answers
2 electron pairs around the central atom – answer Shape: Linear
Bond Angle: 180
Example: Carbon Dioxide (CO2)

3 electron pairs around the central atom – answer Shape: Trigonal planar
Bond Angle: 120
Example: Boron Trifluoride (BF3)

4 electron pairs around the central atom – answer Shape: Tetrahedral
Bond Angle: 109.5
Example: Methane (CH4)

5 electron pairs around the central atom – answer Shape: Trigonal bipyramid
Bond Angle: 120 and 90
Example: Phosphorous Pentafluoride (PF5)

6 electron pairs around the central atom – answer Shape: Octahedral
Bond Angle: 90
Example: Sulfur Hexafluoride (SF6)

Ammonia - answerShape: Pyramidal
Bond Angle: 107
Formula: NH3

Water – answer Shape: Non-linear/V-shaped
Bond Angle: 104
Formula: H2O

Ammonium ion – answer Shape: Tetrahedral
Bond Angle: 109.5
Formula: NH4+

Hydroxonium Ion – answer Shape: Pyramidal
Bond Angle: 107
Formula: H3O+

Cis-platin - answerShape: Square Planar
Bond Angle: 90
Formula: [PtCl2(NH3)2]

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