multiple - choice question which element has the highest electronegativity? francium helium fluorine iodine

Brief Explanations:

Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. Fluorine has the highest electronegativity value on the Pauling scale due to its small atomic size and high nuclear charge, which allows it to attract bonding - electrons more strongly than other elements. Francium is a metal with low electronegativity, helium is a noble gas and generally does not form chemical bonds in the same sense (and has a very low electronegativity value in the context of bonding), and iodine has a lower electronegativity than fluorine.

Answer:

C. Fluorine