See also: List of individual Iodine isotopes (and general data sources).
General data
Name of the isotope:Iodine-112; I-112Other names:Jod-112Symbol:112I or 11253IMass number A:112 (= number of nucleons)Atomic number Z:53 (= number of protons)Neutrons N:59Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.1132075471698 (= neutron-proton ratio)Neutron excess (N-Z):6Isotopic mass:111.928005(11) u (atomic weight of Iodine-112)Nuclide mass:111.8989321 u (calculated nuclear mass without electrons)Mass excess:-67.06291 MeVMass defect:0.99795174 u (per nucleus)Nuclear binding energy:929.5860581 MeV (per nucleus) 8.29987552 MeV (average binding energy per nucleon)Separation energy:SN = 10.181(11) MeV (first neutron) SP = 0.765(12) MeV (first proton)Half-life:3.34(8) sDecay constant λ:0.20752909597603 s-1Specific activity α:1.116583314214 × 10+21 Bq g-1 30177927411.203 Ci g-1Spin and parity: (nuclear angular momentum)(1+)Year of discovery:1977
The following table shows the atomic nuclei that are isotonic (same neutron number N = 59) and isobaric (same nucleon number A = 112) with Iodine-112. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
