Is SbF5 polar or nonpolar? – Polarity of SbF5

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The question is –

Is SbF5 polar or nonpolar?


SbF5 is non-polar.


Antimony pentafluoride (SbF5) is non-polar as the dipole moments of individually polar Sb-F bonds get canceled equally in opposite directions in the symmetrical, trigonal bipyramidal molecular shape and geometry.

SbF5 consists of five Sb-F bonds.

Each Sb-F bond is strongly polar as it consists of an electronegativity difference of 1.93 units between a single-covalently bonded antimony (E.N = 2.05) and fluorine (E.N = 3.98) atom.

Fluorine is the most electronegative element of the Periodic Table.

It strongly attracts the Sb-F shared electron cloud largely towards itself.

Thus, the central Sb-atom gains a partial positive charge (δ+) while each terminal F-atom gains a partial negative (δ) charge, respectively.

There are no lone pair of electrons present on the central Sb-atom in SbF5 thus, no lone pair-lone pair or lone pair-bond pair electronic repulsions exist in the molecule.

Hence, it occupies a symmetrical trigonal bipyramidal shape and geometry. 

is sbf5 polar or nonpolar

The dipole moments of strongly polar Sb-F bonds get canceled equally in opposite directions.

The charged electron cloud stays uniformly distributed, which leads to an overall non-polar SbF5 molecule (net µ = 0).

Also, check –

How to identify polar or nonpolar compounds?

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