Is singlet or triplet higher energy?
Is singlet or triplet higher energy? If you consider stability simply in terms of energy and not lifetime, then a triplet state is definitely more stable than a singlet state, i.e., a triplet state is of lower energy than a singlet excited state. Here hnn is a contribution to energy irrespective of the spin of the electron. Why singlet state has more energy than triplet? Because the singlet state has electron repulsion and no exchange energy, i.e. it has paired antiparallel electrons instead of unpaired parallel electrons. Triplet: two unpaired electrons. What is the difference between a triplet state and...