." This value agrees with the currently adopted value of 0.00(0) h.  $^{000}$At {#at-00 .unnumbered} ----------  In 0000 Hyde et al. reported the first observation of $^{000}$At in the paper "Low mass francium and emanation isotopes of high alpha-stability" [@0000Hyd00]. Thorium foils were bombarded with up to 000 MeV protons from the Berkeley 000-inch cyclotron. $^{000}$Fr was chemically separated and $^{000}$