See also: List of individual Ruthenium isotopes (and general data sources).
General data
Name of the isotope:Ruthenium-107; Ru-107Symbol:107Ru or 10744RuMass number A:107 (= number of nucleons)Atomic number Z:44 (= number of protons)Neutrons N:63Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.4318181818182 (= neutron-proton ratio)Neutron excess (N-Z):19Isotopic mass:106.909970(9) u (atomic weight of Ruthenium-107)Nuclide mass:106.8858337 u (calculated nuclear mass without electrons)Mass excess:-83.8624 MeVMass defect:0.98022111600001 u (per nucleus)Nuclear binding energy:913.07008823 MeV (per nucleus) 8.53336531 MeV (average binding energy per nucleon)Separation energy:SN = 5.611(10) MeV (first neutron) SP = 11.375(15) MeV (first proton)Half-life:3.75(5) minDecay constant λ:0.003080654135822 s-1Specific activity α:1.735304278805 × 10+19 Bq g-1 469001156.43389 Ci g-1Spin and parity: (nuclear angular momentum)(5/2)+Year of discovery:1951
Radioactive Decay
Half-life T½ = 3.75(5) min (minutes) respectively 2.25 × 102 seconds s.
The following table shows the atomic nuclei that are isotonic (same neutron number N = 63) and isobaric (same nucleon number A = 107) with Ruthenium-107. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
