Investigating properties of heavy and superheavy atomic systems with p3 configurations

We have investigated the energies and spectroscopic properties such as lifetimes, Land\'e ${g}_{J}$ factors, and hyperfine-structure constants of the neutral atoms P through Mc belonging to group 15, singly ionized atoms ${\mathrm{S}}^{+}$ through ${\mathrm{Lv}}^{+}$ of group 16, and doubly ionized atoms ${\mathrm{Cl}}^{2+}$ through ${\mathrm{Ts}}^{2+}$ of group 17 of the periodic table. These elements have $n{p}^{3}$ configurations with $n=3--7$, which are highly open shell and expected to exhibit strong electron-correlation effects. We have used the four-component Dirac-Coulomb Hamiltonian along with the Gaunt term and a relativistic effective core potential while employing the relativistic multireference configuration-interaction method to perform the calculations with sufficient accuracy and compare the results with the available literature data. These comparisons suggest that our predicted values, for which experimental data are not available, are reliable enough to be useful for future applications.