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1. Follow the steps to determine molecular structure using VSEPR theory to complete the following table. PF3 is worked out for you as an example. Formula PF3 POCI3 BrF3 IF5 SeF4 XeF2 SF6 SO3 XeF4 Number of electron groups 4 Number of bonding electron groups 3 5 5 b 5 4 4 Electron-pair geometry Tetrahedral Tetrahedral Octahedral Trigonal bi- pyramidal octahedral 9 9 CHM 111 Lab - Molecular Geometry Number of nonbonding electron groups 1 1 1 2 Molecular geometry (shape) Trigonal pyramidal Tetrahedral see saw Polar or Non-polar Trigonal Bipyramidalpolar (+-shaped) square Pyramida polar octahedral polar polar Polar non- polar non- Polar trigonal non- planar polar Square non- Planar polar