Shapes of Molecules and ions. 4.0 / 5 based on 1 rating ? ChemistryBonding & shapesASAQA Created by: elyornaisCreated on: 01-02-15 21:37 What is the shape and bond angle of a molecule with two pairs of electrons? Linear 180 1 of 8 Three pairs of electrons? Trigonal Planar 120 2 of 8 Four pairs of electrons? Tetrahedral 109.5 3 of 8 Five pairs of electrons? Trigonal bipyramid 90 and 120 4 of 8 Six pairs of electrons? Octahedral 90 5 of 8 What effect does a lone pair have on the bond angle? Reduces by about 2.5 6 of 8 What is the shape and bond angle of ammonia? Trigonal pyramidal (or tetrahedral) 107 7 of 8 What is the shape and bond angle of water? V-shaped and 104.5 8 of 8
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