Which statement is true about bf3, a nonpolar molecule? it has nonpolar bonds and a symmetrical structure. it has nonpolar bonds and an asymmetrical structure. it has polar bonds and a symmetrical structure. it has polar bonds and an asymmetrical structure. it has ionic bonds and symmetrical structure.

It has polar bonds and a symmetrical structure.

Explanation:

Formula used  for calculating hybridization

where, V = number of valence electrons present in central atom i.e. boron= 3

N = number of monovalent atoms bonded to central atom=3

C = charge of cation = 0

A = charge of anion = 0

The number of electrons is 3 that means the hybridization will be and the electronic geometry of the molecule will be trigonal planar.

Thus as there are no lone pair of electrons, there is no distortion and the molecule is symmetrical. The B-F bonds are polar due to electronegativity difference but the polarities cancel due to symmetrical structure.

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell