Rhodium-102
Properties and data of the isotope 102Rh.
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:2.307501288901 × 10+14 Bq g-1
6236.4899700032 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.
| Nuclear Isomer | Excitation Energy | Half-life | Spin |
|---|
| 102mRh | 140.73(9) keV | 3.742(10) a | 6(+) |
Isotones and Isobars
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.
| Z | Isotone N = 57 | Isobar A = 102 |
|---|
| 32 | 89Ge | |
| 33 | 90As | |
| 34 | 91Se | |
| 35 | 92Br | |
| 36 | 93Kr | |
| 37 | 94Rb | 102Rb |
| 38 | 95Sr | 102Sr |
| 39 | 96Y | 102Y |
| 40 | 97Zr | 102Zr |
| 41 | 98Nb | 102Nb |
| 42 | 99Mo | 102Mo |
| 43 | 100Tc | 102Tc |
| 44 | 101Ru | 102Ru |
| 45 | 102Rh | 102Rh |
| 46 | 103Pd | 102Pd |
| 47 | 104Ag | 102Ag |
| 48 | 105Cd | 102Cd |
| 49 | 106In | 102In |
| 50 | 107Sn | 102Sn |
| 51 | 108Sb | |
| 52 | 109Te | |
| 53 | 110I | |
| 54 | 111Xe | |
| 55 | 112Cs | |
External data and identifiers
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/rhodium-102
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