الخلاصة

Some radial atomic properties of Be-atom in different excited states (1s2 2s 3s, 1s2 2s 4s, 1s2 2s 5s) (1s) have been obtained using two electron density function
(r1,r2) in order to solve Hartree-Fock equations using slater type orbitals using partitioning technique within the individual electronic shells of different configuration of Be-atom in position space. Radial expectations values for one electron <  > and two electrons <  .   >, correlation coefficients τ , electron density at the nucleus (), the nuclear magnetic shielding constant σ,and The diamagnetic susceptibility χ have been calculated for these states of the same atom.