See also: List of individual Tin isotopes (and general data sources).
General data
Name of the isotope:Tin-100; Sn-100Symbol:100Sn or 10050SnMass number A:100 (= number of nucleons)Atomic number Z:50 (= number of protons)Neutrons N:50Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1 (= neutron-proton ratio)Neutron excess (N-Z):0Isotopic mass:99.93850(32) u (atomic weight of Tin-100)Nuclide mass:99.9110726 u (calculated nuclear mass without electrons)Mass excess:-57.28688 MeVMass defect:0.88599739999999 u (per nucleus)Nuclear binding energy:825.30126212 MeV (per nucleus) 8.25301262 MeV (average binding energy per nucleon)Separation energy:SN = 17.41(59) MeV (first neutron) SP = 3.20(42) MeV (first proton)Half-life:1.16(20) sDecay constant λ:0.5975406728965 s-1Specific activity α:3.600688465414 × 10+21 Bq g-1 97315904470.651 Ci g-1Spin and parity: (nuclear angular momentum)0+Year of discovery:1994
Radioactive Decay
Half-life T½ = 1.16(20) s.
Decay mode
Daughter
Probability
Decay energy
γ energy (intensity)
EC/β+
100In
> 83 %
7.03(35) MeV
EC, p
99Cd
< 17 %
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 50) and isobaric (same nucleon number A = 100) with Tin-100. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
