Calculated Lifetimes in the Neon Isoelectronic Sequence

Calculations of energies and lifetimes of levels for configurations 2 s 2 2 p 5 3 l and 2 s 2 p 6 3 l were performed for the Mg, Si, S, Ar, Ca, Ti, V, Cr, Fe, Ni ions. The intermediate coupling scheme was used. The initial energy matrix was derived in the LS -scheme. Relativistic corrections were calculated using the Breit operator. Calculations were made in the framework of the Z -expansion perturbation theory.