<Ul> <Li> MPI of electrons from the inner orbitals of the molecule which results in a molecular ion in ro - vibrational levels of an excited electronic state; </Li> <Li> Rapid radiationless transition to the high - lying ro - vibrational levels of a lower electronic state; and </Li> <Li> Subsequent dissociation of the ion to different fragments through various fragmentation channels . </Li> </Ul> <Li> MPI of electrons from the inner orbitals of the molecule which results in a molecular ion in ro - vibrational levels of an excited electronic state; </Li> <Li> Rapid radiationless transition to the high - lying ro - vibrational levels of a lower electronic state; and </Li> <Li> Subsequent dissociation of the ion to different fragments through various fragmentation channels . </Li>

Who gave the law of ionization in physics