See also: List of individual Ruthenium isotopes (and general data sources).
General data
Name of the isotope:Ruthenium-93; Ru-93Symbol:93Ru or 9344RuMass number A:93 (= number of nucleons)Atomic number Z:44 (= number of protons)Neutrons N:49Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.1136363636364 (= neutron-proton ratio)Neutron excess (N-Z):5Isotopic mass:92.9171044(22) u (atomic weight of Ruthenium-93)Nuclide mass:92.8929681 u (calculated nuclear mass without electrons)Mass excess:-77.21675 MeVMass defect:0.851777892 u (per nucleus)Nuclear binding energy:793.42599573 MeV (per nucleus) 8.53146232 MeV (average binding energy per nucleon)Separation energy:SN = 10.987(3) MeV (first neutron) SP = 5.580(4) MeV (first proton)Half-life:59.7(6) sDecay constant λ:0.011610505537018 s-1Specific activity α:7.524997586846 × 10+19 Bq g-1 2033783131.5802 Ci g-1Spin and parity: (nuclear angular momentum)(9/2)+Year of discovery:1972
Radioactive Decay
Half-life T½ = 59.7(6) s respectively 5.97 × 101 seconds s.
Decay mode
Daughter
Probability
Decay energy
γ energy (intensity)
EC/β+
93Tc
100 %
6.3894(23) MeV
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 = 49) and isobaric (same nucleon number A = 93) with Ruthenium-93. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
