Question

Statement of BF3 molecules plane of sym

Answer 1

$\sf{Answer}$

• BF3 is a planar molecule with all its 4 atoms lying in the same plane. The axis perpendicular to the plane and passing through atom B is the principal axis which is C3. Plane of the molecule is sigma h. There are 3 C2 axis in the plane of BF3 each passing through three B-F . There are three vertical mirror planes passing through 3 C2 axis which is 3sigma v. There is an improper rotation also which is 2S3 means rotation by C3(principal axis) followed by sigma h (plane of the molecule). So BF3 has 6 symmetry elements including E,2C3,3C2,3sigma v,1sigma h,2S3.

$\sf{Answer\:by\:UnicornRahuL}$