A hydrogen atom is in its ground state. Its levels are E_1 = -13,6 eV, E_2 = -3,4 eV, E_3 = -1,5 eV. It is sent, one after another, photons of energies 8 eV, 10,2 eV and 12 eV. Which one can be absorbed?
E_1 = -13,6 eV
E_2 = -3,4 eV
E_3 = -1,5 eV
