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Evidences for electronic energy levels of atoms 1.Variation of successive ionisation energies The above graph illustrates all the successive ionization energies of chlorine.The number of successive ionisation energies is equal to the number of electrons in the atom. When attention is paid to sudden increase in successive ionisation energies it is proved that electrons […]http://astan.lk/al_virtualclassroom/wp-content/uploads/2017/01/clies1to8.gif