of H 2 molecule in the electronic ground state. What is the value of the net potential energy E 0 (as indicated in figure) in kJ mol -1 , for d = do at which the electron-electron repulsion and the nucleus-nucleus repulsion energies are absent? As reference, the potential energy of H atom is taken as zero when its electron and the nucleus are infinitely far apart. Use Avogadro constant as 6.023 x 10 23 mol -1 .