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\nVSEPR Theory - lone electron pair influence\n

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\nBond Angle Distortion: Lone pairs reduce bond angles between bonding pairs. For example, in a molecule like NH₃ (ammonia), the ideal tetrahedral angle of 109.5° is compressed to around 107° due to the presence of a lone pair on nitrogen....\nBond Angle Distortion: Lone pairs reduce bond angles between bonding pairs. For example, in a molecule like NH₃ (ammonia), the ideal tetrahedral angle of 109.5° is compressed to around 107° due to the presence of a lone pair on nitrogen. Geometries of Molecules with Lone Pairs: Molecules with lone pairs typically adopt geometries that minimize lone pair-lone pair and lone pair-bonding pair repulsion. Common examples include: Bent Geometry: Seen in molecules like H₂O, where lone pairs on oxygen push the hydrogen atoms closer together, resulting in an angle of about 104.5°. Trigonal Pyramidal Geometry: Seen in ammonia (NH₃), where the lone pair on nitrogen causes the three hydrogen atoms to be pushed slightly closer together compared to a perfect tetrahedral geometry. Greater Repulsion from Lone Pairs: Lone pairs tend to push bonding pairs more strongly than bonding pairs push each other, altering the bond angles from what would be predicted for molecules without lone pairs. This is why the geometry of molecules with lone pairs cannot be predicted by considering only the bonding pairs.\n
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5:05
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9th - Higher Ed
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Science
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\nAudio Visual Representation of Chemistry\n\n
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2024
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English
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vsepr theory, molecular geometry, electrons, molecules, ammonia, oxygen, north, bond angles
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lone pair, electron repulsion, molecular shape, electron density, bond pair, vesper theory, central atom, electron pairs, resonating structures, sulphur atom, sulphur dioxide, single bond, double bond, bond angle, bond, geometry, shape, present, attracted, repulsions, molecule, bonds, predict, refers, exists, bonded, treated
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