99.88% 0.31 MeV β 5.272 a 0.12% 1.48 MeV β 1.1732 MeV γ 1.3325 MeV γ Co 60m 10.467m 0.05859 MeV γ 2.505 4+ 2.158 2+ 1.332 2+ 0+ 5+ 2+