Rhodium-119
Properties and data of the isotope 119Rh.
See also: List of individual Rhodium isotopes (and general data sources).
General data
Name of the isotope:Rhodium-119; Rh-119Symbol:119Rh or 11945RhMass number A:119 (= number of nucleons)Atomic number Z:45 (= number of protons)Neutrons N:74Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.6444444444444 (= neutron-proton ratio)Neutron excess (N-Z):29Isotopic mass:118.932557(10) u (atomic weight of Rhodium-119)Nuclide mass:118.9078722 u (calculated nuclear mass without electrons)Mass excess:-62.82275 MeVMass defect:1.060773224 u (per nucleus)Nuclear binding energy:988.10389352 MeV (per nucleus)
8.30339406 MeV (average binding energy per nucleon)Separation energy:SN = 6.007(26) MeV (first neutron)
SP = 12.85(20) MeV (first proton)Half-life:171(18) msDecay constant λ:4.0534922839763 s-1Specific activity α:2.068703517692 × 10+22 Bq g-1
559109058835.81 Ci g-1Spin and parity:
(nuclear angular momentum)(7/2+)Year of discovery:1994
Radioactive Decay
Half-life T½ = 171(18) ms respectively 1.71 × 10-1 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 119Pd | 93.6(16) % | 8.585(12) MeV | |
| β-, n | 118Pd | 6.4(16) % | 4.495(10) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 74) and isobaric (same nucleon number A = 119) with Rhodium-119. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 74 | Isobar A = 119 |
|---|
| 41 | 115Nb | |
| 42 | 116Mo | |
| 43 | 117Tc | 119Tc |
| 44 | 118Ru | 119Ru |
| 45 | 119Rh | 119Rh |
| 46 | 120Pd | 119Pd |
| 47 | 121Ag | 119Ag |
| 48 | 122Cd | 119Cd |
| 49 | 123In | 119In |
| 50 | 124Sn | 119Sn |
| 51 | 125Sb | 119Sb |
| 52 | 126Te | 119Te |
| 53 | 127I | 119I |
| 54 | 128Xe | 119Xe |
| 55 | 129Cs | 119Cs |
| 56 | 130Ba | 119Ba |
| 57 | 131La | 119La |
| 58 | 132Ce | 119Ce |
| 59 | 133Pr | |
| 60 | 134Nd | |
| 61 | 135Pm | |
| 62 | 136Sm | |
| 63 | 137Eu | |
| 64 | 138Gd | |
| 65 | 139Tb | |
| 66 | 140Dy | |
| 67 | 141Ho | |
External data and identifiers
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/rhodium-119
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