Determine the molecular geometries of the following moleculeand ion. NF 3 ___ Li

Question

Determine the molecular geometries of the following moleculeand ion. NF3 ___ Linear          ___Bent          ___ Trigonalplanar         ___ Trigonal pyramidal         ___Tetrahedral NO3-   ___ Linear            ___ Bent            ___ Trigonal planar           ___ Trigonal pyramidal            ___ Tetrahedral Determine the molecular geometries of the following moleculeand ion. NF3 ___ Linear          ___Bent          ___ Trigonalplanar         ___ Trigonal pyramidal         ___Tetrahedral NO3-   ___ Linear            ___ Bent            ___ Trigonal planar           ___ Trigonal pyramidal            ___ Tetrahedral

Explanation / Answer

The geometry of the molecule can be determinedwith respect to their Hybridisation and their lone pair electroneffects      NF3                Hybridisation = 5 + 3 / 2                                        = 4 ( SP3 hybridisation with 1 lone pair electrons astheir is only 3 atoms present for bonding )       So the geometry of the moleculeis Trigonal pyramidal.          NO3-                  Hybridisation = 5 + 1 / 2                                     = 3 ( SP2 hybridisation with no lone pairs on thecentral atom )           so the geometry of the molecule is trigonal planar.                      

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