See also: List of individual Rhodium isotopes (and general data sources).
General data
Name of the isotope:Rhodium-102; Rh-102Symbol:102Rh or 10245RhMass number A:102 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:57Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.2666666666667 (= neutron-proton ratio)Neutron excess (N-Z):12Isotopic mass:101.906834(7) u (atomic weight of Rhodium-102)Nuclide mass:101.8821492 u (calculated nuclear mass without electrons)Mass excess:-86.78357 MeVMass defect:0.939192652 u (per nucleus)Nuclear binding energy:874.85232018 MeV (per nucleus) 8.57698353 MeV (average binding energy per nucleon)Separation energy:SN = 7.442(9) MeV (first neutron) SP = 6.114(6) MeV (first proton)Half-life:207.3(17) dDecay constant λ:3.870012933929 × 10-8 s-1Specific activity α:2.286967587585 × 10+14 Bq g-1 6180.9934799608 Ci g-1Spin and parity: (nuclear angular momentum)(2-)Magnetic dipole moment:μ(μN) = 0.5(4)Nuclear g-factor:gl = 0.25Year of discovery:1941
Radioactive Decay
Half-life T½ = 207.3(17) d respectively 1.7910720 × 107 seconds s.
Decay mode
Daughter
Probability
Decay energy
γ energy (intensity)
EC/β+
102Ru
78(5) %
2.323(6) MeV
β-
102Pd
22(5) %
1.120(6) 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 = 57) and isobaric (same nucleon number A = 102) with Rhodium-102. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
