Which diatomic molecule has the strongest bonding between its atoms?

A.     \({{\text{H}}_{\text{2}}}\)

B.     \({{\text{N}}_{\text{2}}}\)

C.     \({{\text{O}}_{\text{2}}}\)

D.     \({{\text{F}}_{\text{2}}}\)

B

This caused some difficulties for candidates with opinion evenly divided between B (\({{\text{N}}_{\text{2}}}\), correct) and D (\({{\text{F}}_{\text{2}}}\)). Candidates were presumably thinking about electronegativity rather than the number of bonds between the atoms.