In which compound does the bond between the atoms have the least ionic character? 1. hf 2. hcl 3. hbr 4. hi?

HI because the degree of iconic character can be determined based on differences in electronegativity which for HI is. 5. Also, Hydrogen Iodide is made up of Hydrogen Halide and a Diatomic Molecule, both of which are non-metals. HF is 1.9, HCL is. 9, and HBR is. 7; hence HI being the correct answer.