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Energies and lifetimes are reported for the lowest 375 levels of five Br-likeions, namely Sr~IV, Y~V, Zr~VI, Nb~VII, and Mo~VIII, mostly belonging to the4s$^2$4p$^5$, 4s$^2$4p$^4$4$\ell$, 4s4p$^6$, 4s$^2$4p$^4$5$\ell$,4s$^2$4p$^3$4d$^2$, 4s4p$^5$4$\ell$, and 4s4p$^5$5$\ell$ configurations.Extensive configuration interaction has been included and the general-purposerelativistic atomic structure package ({\sc grasp}) has been adopted for thecalculations. Additionally, radiative rates are listed among these levels forall E1, E2, M1, and M2 transitions. From a comparison with the measurements,the majority of our energy levels are assessed to be accurate to better than2\%, although discrepancies between theory and experiment for a few are up to6\%. An accuracy assessment of the calculated radiative rates (and lifetimes)is more difficult, because no prior results exist for these ions.

Radiative rates for E1, E2, M1, and M2 transitions in the Br-like ions Sr IV, Y V, Zr VI, Nb VII, and Mo VIII