My. Kuchiev et al., QUADRUPOLE-MOMENT OF THE NS1 2-STATE OF THE HYDROGEN-ATOM/, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 22(4), 1992, pp. 679-682
The result of the quadrupole Q(ns)1/2 calculation of the excited ns1/2
-state of the hydrogen atom is presented. It is shown that Q(ns)1/2 tu
rns out to be a factor (n2 + 2)/3 larger than the ground-state quadrup
ole moment Q1s1/2.