N\(_2\)$<$SO\(_2\)$<$ClF\(_3\)$<$K\(_2\)O$<$LiF
N\(_2\)$<$ClF\(_3\)$<$SO\(_2\)$<$K\(_2\)O$<$LiF
The order of increasing ionic character depends on the electronegativity difference between atoms, with greater differences resulting in more ionic character.