Bond energies of H_2, F_2 and HF are respec tively 104.2, 36.6 and 134.6 k cal "mol"^(-1). If the electronegativity value of hydrogen is 2.1, calculate the electro-negativity value of fluorine.

Bond energies of H_2, F_2 and HF are respec tively 104.2, 36.6 and 134

1.	Bond energies of H_2, F_2 and HF are respec tively 104.2, 36.6 and 134.6 k cal "mol"^(-1). If the electronegativity value of hydrogen is 2.1, calculate the electro-negativity value of fluorine.
Answer» ANSWER :3.7