Consider an N2 molecule in its first excited electronic state, that is, when an electron i...

Consider an N2 molecule in its first excited electronic state, that is, when an electron in the highest occupied molecular orbital is promoted to the lowest empty molecular orbital. (a) Identify the molecular orbitals involved, and sketch a diagram to show the transition. (b) Compare the bond order and bond length of with N2 where the asterisk denotes the excited molecule. (c) Is diamagnetic or paramagnetic? (d) When loses its excess energy and converts to the ground state N2, it emits a photon of wavelength 470 nm, which makes up part of the auroras’ lights. Calculate the energy difference between these levels.