O-LevelChemistryBonding & Structure5070/12 · Oct/Nov 2022 · Q111 Mark
Boron trifluoride, BF₃, is a simple molecule. There are three covalent bonds in each BF₃ molecule. Each of these bonds is made by sharing one electron from the boron atom and one electron from a fluorine atom. What is unusual about the bonding in boron trifluoride?
AIt is unusual for a non-metal such as fluorine to form covalent bonds.
BThe boron atom in each molecule does not gain the electronic configuration of a noble gas.
CThe covalent bonds do not consist of shared pairs of electrons.
DThe fluorine atoms in each molecule do not gain the electronic configuration of a noble gas.
✓ Correct answer
B: The boron atom in each molecule does not gain the electronic configuration of a noble gas.
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