  In this study a comprehensive calculations of energies, hyperfine structure
constants, Land\'e g$_J$ factors and isotope shifts have been performed for the
lowest 71 states of Na-like Ar$^{7+}$, Kr$^{25+}$ and Xe$^{43+}$ ions.
Radiative parameters viz., transition rates, wavelengths, oscillator strengths
and lifetimes are also estimated for the electric and magnetic dipole and
quadrupole transitions among these levels. The states under consideration
includes $1s^2s^22p^6nl$ where n = 3 to 9 and l = s to i and fully relativistic
multiconfiguration Dirac Fock method integrated in the latest version of
general purpose relativistic atomic structure package is used. The relativistic
calculation viz., Briet interactions and quantum electrodynamics effects are
also included and their effects on energies are analysed. To inspect the
reliability of MCDF results, we carried out another calculations using many
body perturbation theory method integrated in Flexi Atomic code. A thorough
comparison between the two obtained calculations and with the previous
theoretical and experimental results, wherever available, is carried out and a
good agreement is observed. The present calculations will considerably extend
the already existing results for these Na-like ions as most of the results are
reported for the first time Further, we believe that our results are of high
accuracy and will be beneficial for spectral analysis and diagnosis in plasma
and astrophysics.
