What type of bond exists in a molecule of hydrogen iodide and what is the electronegative difference

a polar covalent bond, with a electonegativity difference between 0 and 1.7

Explanation:

from Chemistry castle learning

Polar covalent bond, with a electonegative of 0.46

Explanation:

Hydrogen iodide (HI) is a diatomic molecule formed with covalent bonds between hydrogen and iodine atoms. The molecule is a dipole since it has two electrical poles, the electron cloud is denser in one side. The electrons are not equally shared this type of bond is known as a polar covalent bond. This happens due to the difference in electronegativity, the bigger the difference the more polar will be the bond. Iodine has an electronegativity of 2.66 while hydrogen has a value of 2.2. The difference in electronegativity is 0.46 the strength is fairly enough to have a slightly polar character, thus the electron cloud is in the Iodine side.