a) For a hydrogen atom determine the average value of r for a Is, 2s and 2p orbital.
b) Determine the most probable value of r for each of these orbitals. If they differ, suggest why they do so.
c) The potential energy for the H-atom is proportional to 1 /r. Calculate the average value of 1/r for the above orbitals. Does (1/r) = (1/r) Why or why not?