The multifractal formalism is applied to the energy eigenvalues of Ce I, Ce
a, Nd II, Sm I, Sm II, and Tb I. The Renyi dimensions D-q, mass exponents
tau (q) and f(alpha) spectra are calculated and used to characterize the ei
genvalue spectra: It is found that these elements show mufti-scaling behavi
our that can be accurately modelled by simple multifractal recursive Cantor
sets. The effect of unfolding the spectra is also investigated.