Seniority of thef724Levels inCr52

The seniorities of recently observed levels in ${\mathrm{Cr}}^{52}$ are considered. The energies as well as $M1\mathrm{}$ transition rates agree rather well with a ${f_{\frac{7}{2}}}^4$ assignment. On the other hand, there is not enough experimental information about the possible operation of the $E2\mathrm{}$ selection rule ($\Delta v=2\mathrm{}$ but no $\Delta v=0\mathrm{}$) for this configuration.