Is AlBr3 polar or nonpolar? – Polarity of AlBr3

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The question is –

Is AlBr3 polar or non-polar?


AlBr3 is a non-polar molecule.  


Aluminum tribromide (AlBr3) is non-polar as the dipole moments of individually polar Al-Br bonds get canceled equally in the symmetrical trigonal planar shape of the molecule.

AlBr3 consists of an aluminum (Al) atom at the center.

It is surrounded by 3 bromine (Br) atoms.

Each Al-Br bond is strongly polar due to an electronegativity difference of 1.35 units between the bonded aluminum (E.N = 1.61) and bromine (E.N = 2.96) atoms.

However, it is due to the symmetrical trigonal planar shape of AlBr3 that the net dipole moment of two downwards-pointing Al-Br bonds gets canceled equally with the dipole moment of an upwards-pointing Al-Br bond to yield a zero net dipole moment value.

Consequently, AlBr3 is non-polar (net µ = 0).

is albr3 polar or nonpolar

Also, check –

How to know if a molecule is polar or nonpolar?

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