E3Isomer inAg105

An $E3\mathrm{}$ isomer has been found in ${\mathrm{Ag}}^{105}$. The isomeric transition with half-life 7.23±0.16 min is attributed to a 25.5-keV transition to the ground state. Electron-capture branching to known levels in ${\mathrm{Pd}}^{105}$ has been observed. The reduced radiative lifetimes of the five $E3\mathrm{}$ isomers now known in odd-$A$ silver isotopes are compared and found to be constant within a factor of 2.