Decay of thei132State inPb205

The $L_{\mathrm{I}}$, $L_{\mathrm{II}}$, $L_{\mathrm{III}}$, $M_{\mathrm{I}}$, $M_{\mathrm{II}}$, $M_{\mathrm{III}}$, $M_{\mathrm{IV}}$, $N_{\mathrm{I}}$, $N_{\mathrm{III}}$, and $O_{\mathrm{I}}$ conversion lines of a 26.22±0.01-kev transition in ${\mathrm{Pb}}^{205}$ have been found from studies with electromagnetically separated samples of ${\mathrm{Bi}}^{205}$. The transition, having $M2\mathrm{}$ character, most probably takes place from a 4-msec $i_{\frac{13}{2}}$ state of 1014.0 kev to the 987.6-kev $\frac{9}{2}-$ state, thus causing the latter state to appear metastable, as has earlier been reported. This suggestion is also supported by strong evidence for the existence of a 310.5-kev $E3\mathrm{}$ transition between the isomeric state and the 703.3-kev state. The energy 1014.0 kev of the $i_{\frac{13}{2}}$ state coincides with a transition energy in ${\mathrm{Pb}}^{205}$ earlier reported, and is found to fit well into the energy systematics of the $i_{\frac{13}{2}}\to f_{\frac{5}{2}}$ $M4\mathrm{}$ transitions in the odd lead isotopes.