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Asked by Prasad
May 28, 2014
Member since Apr 24, 2013
Ans: In NF3 -The central atom Nitrogen undergoes SP3 hybridization and there is one lone pair on Nitrogen atom. There exists repulsion force between lone pair and bond pair of electrons in NF3 molecule because of which it acquires pyramidal shape.
Where as in BF3 the central atom Boron undergoes SP2 hybridization and has no lone pair of electrons. Thus three Fluorine atoms will occupy three corners of triangular planar structure.