Half life of tc-99m 6hr
Half life of Mo-99 66hrs
Half life of I-131 8 days
Half life of I-123 13hr
Half life of In-111 2.8 days
Half life of Xe-133 5.24
Half life of Tl-201 3.04 days
Half life of Ga-67 3.26 days
Half life of Y-90 64 hours
Half life of Sm-153 46.5 hrs
Half life of Sr-89 50.5 days
Half life of F-18 110 min
Half life of C-11 20.3 min
Half life of N-13 9.97 min
Half life of O-15 122 sec
Half life of Ga-68 68 min
Half life of Ge-68 271 days
Half life of Rb-82 76.4 sec
Half life of Sr-82 25.55 days
Half life of Cs-137 30 years
Half life of Gd-153 242 days
Half life of Co-57 272 days
KeV of Tc99m 140
KeV of Mo-99 740, 778