Relativistic perturbation theory with model potential of zero approximation is used for calculation of the energy levels 3p⁶3d⁹4$\ell$, 3p⁵3d¹⁰4$\ell$ ($\ell$=1–3) of Ni-like ions with Z=36–56. The known ionization potentials of Ni-like ions used in calculations are corrected here. The dipole and quadrupole electric and magnetic probabilities of radiative transitions to the ground state are presented in graphs. It is shown that in the point of crossing of levels of the same parity and the same J a strong interaction of these levels occurs, which leads to a redistribution of the oscillator strengths of the radiative transitions from these levels. The crossing of energy levels of the opposite parities 3p⁵3d¹⁰4s [J=0], 3p⁵3d¹⁰4p [J=1] in Sn XXIII is shown.

具有零近似模型势的相对论微扰理论用于计算能级 3p ⁶ 3d ⁹ 4$\ell$, 3p ⁵ 3d ¹⁰ 4$\ell$ ($\ell$=1-3) 的类 Ni 离子，Z=36-56。计算中使用的类镍离子的已知电离电位在此处进行了校正。辐射跃迁到基态的偶极子和四极子电和磁概率以图表形式呈现。结果表明，在相同奇偶性和相同 J 的能级的交叉点，这些能级的强相互作用发生，这导致来自这些能级的辐射跃迁的振子强度重新分布。显示了 Sn XXIII 中相反奇偶性 3p ⁵ 3d ¹⁰ 4s [J=0]、3p ⁵ 3d ¹⁰ 4p [J=1]的能级的交叉。