See also: List of individual Strontium isotopes (and general data sources).
General data
Name of the isotope:Strontium-107; Sr-107Symbol:107Sr or 10738SrMass number A:107 (= number of nucleons)Atomic number Z:38 (= number of protons)Neutrons N:69Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.8157894736842 (= neutron-proton ratio)Neutron excess (N-Z):31Isotopic mass:106.96897(75) u (atomic weight of Strontium-107)Nuclide mass:106.9481248 u (calculated nuclear mass without electrons)Mass excess:-28.90426 MeVMass defect:0.92626042000001 u (per nucleus)Nuclear binding energy:862.80602367 MeV (per nucleus) 8.0636077 MeV (average binding energy per nucleon)Separation energy:SN = 2.18(92) MeV (first neutron)Half-life:395 nsDecay constant λ:1754802.9887594 s-1Specific activity α:9.879192633506 × 10+27 Bq g-1 2.670052063109 × 10+17 Ci g-1Spin and parity: (nuclear angular momentum)Year of discovery:2010
The following table shows the atomic nuclei that are isotonic (same neutron number N = 69) and isobaric (same nucleon number A = 107) with Strontium-107. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
