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.