MOLECULAR POLARITYFIELD NOTE 12 / 175

Is Br2 polar or nonpolar?

Br2 is a nonpolar molecule because both bromine atoms are identical and there is no charge separation across the bond.

THE ANSWERNonpolar.

Bromine · linear

FIGURE 01

The molecule in space

Drag to turn the molecule. A two-atom molecule has no bond angle.

STRUCTURE / 01
Br ×2
BrBr
↻ Drag to rotate · hover or tap for details
Open labeled diagram ↗

01 / MODEL RECORDPubChem 3D coordinates. Atom sizes and bond thickness are illustrative.How model data is used ↗

THE REASONING

Why Br2 is nonpolar

Bromine is a diatomic molecule with two identical bromine atoms sharing a single covalent bond. Both atoms have the same electronegativity (2.96), so electrons are shared equally and no dipole moment forms. Br2 is completely nonpolar.

A USEFUL DISTINCTION

What to notice

Bromine atoms are electronegative, but they are equally electronegative to each other. No permanent bond dipole develops in Br2.

QUICK REFERENCE

Common questions about Br2

  1. 01
    What does the Lewis structure of Br2 show?

    The two Br atoms share one bond. Each Br also has three lone pairs.

  2. 02
    What is the molecular geometry of Br2?

    Br2 is a two-atom molecule, so its geometry is linear. A bond angle needs three atoms and is not defined here.

  3. 03
    What is the molar mass of Br2?

    Br2 has an approximate molar mass of 159.81 g/mol, calculated from its formula using abridged standard atomic weights. Natural isotope variation can change the last digits.

KEEP THE IDEA GOING

Compare molecules

Found something unclear or incorrect?Send feedback about Br2 ↗
ISPOLAR / ELEMENT ATLAS

Explore the elements

Select an element to inspect its electron configuration and reported properties.

Feedback