Is BrF polar or nonpolar? – Polarity of BrF
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The question is –
Is BrF polar or nonpolar?
Answer:
⇒ BrF is polar.
Explanation:
Bromine monofluoride (BrF) is polar due to a specific electronegativity difference of 1.02 units between the single covalently bonded bromine (Br) and fluorine (F) atoms.
The Br-F bond possesses a dipole moment that points from Brδ+ to Fδ–.
Fluorine (E.N = 3.98) is the most electronegative element of the Periodic Table.
Electronegativity increases across a period; however, it decreases down the group. Therefore, bromine (E.N = 2.96) is less electronegative than fluorine, as Br lies below F in Group VII A (halogen group).
Hence in BrF, the F-atom strongly attracts the shared Br-F electron cloud.
Consequently, the F-atom gains a partial negative charge (δ–) while the Br-atom obtains a partial positive charge (δ+).
BrF consists of a single type of bond only in its linear molecular shape and geometry.
Thus, the Br-F dipole moment stays canceled, yielding an extremely polar (net µ > 0) and unstable interhalogen chemical compound i.e., bromine monofluoride (BrF).
Also, check –
⇒ How to identify polar or nonpolar compounds?
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