See also: List of individual Bismuth isotopes (and general data sources).
General data
Name of the isotope:Bismuth-196m1; Bi-196m1Symbol:196m1Bi or 196m183BiMass number A:196 (= number of nucleons)Atomic number Z:83 (= number of protons)Neutrons N:113Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.3614457831325 (= neutron-proton ratio)Neutron excess (N-Z):30Excitation energy:166.4(29) keVIsotopic mass:195.980667(26) u (atomic weight of Bismuth-196m1)Nuclide mass:195.9351401 u (calculated nuclear mass without electrons)Mass excess:-18.00857 MeVMass defect:1.647946164 u (per nucleus)Nuclear binding energy:1535.05196409 MeV (per nucleus) 7.83189778 MeV (average binding energy per nucleon)Half-life:0.6(5) sDecay constant λ:1.1552453009332 s-1Specific activity α:3.549865362254 × 10+21 Bq g-1 95942307087.962 Ci g-1Spin and parity: (nuclear angular momentum)(7+)Year of discovery:1987
Radioactive Decay
Half-life T½ = 0.6(5) s respectively 6 × 10-1 seconds s.
Decay mode
Daughter
Probability
Decay energy
γ energy (intensity)
Iso
196Bi
ca. 100 %
EC/β+
196Pb
?
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
The following table shows the atomic nuclei that are isotonic (same neutron number N = 113) and isobaric (same nucleon number A = 196) with Bismuth-196m1. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
