Question

what is the correct structure for bf₃?

Explanation:

• Boron trifluoride (\(BF_3\)) has a trigonal planar geometry.
• Boron (\(B\)) has 3 valence electrons and each fluorine (\(F\)) has 7 valence electrons.
• In \(BF_3\), boron forms three single bonds with three fluorine atoms.
• There is no double bond in \(BF_3\) as boron does not need to complete an octet in this case (it follows the "expanded valence" concept for some elements in certain compounds, but here it's simply forming three single bonds).

Answer:

The second - option (the one with three single bonds between \(B\) and \(F\) atoms) is the correct structure for \(BF_3\).