Neodymium-134
Properties and data of the isotope 134Nd.
See also: List of individual Neodymium isotopes (and general data sources).
General data
Name of the isotope:Neodymium-134; Nd-134Symbol:134Nd or 13460NdMass number A:134 (= number of nucleons)Atomic number Z:60 (= number of protons)Neutrons N:74Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.2333333333333 (= neutron-proton ratio)Neutron excess (N-Z):14Isotopic mass:133.918790(13) u (atomic weight of Neodymium-134)Nuclide mass:133.8858777 u (calculated nuclear mass without electrons)Mass excess:-75.64663 MeVMass defect:1.191915704 u (per nucleus)Nuclear binding energy:1110.26232678 MeV (per nucleus)
8.28553975 MeV (average binding energy per nucleon)Separation energy:SN = 11.39(5) MeV (first neutron)
SP = 4.998(17) MeV (first proton)Half-life:8.5(15) minDecay constant λ:0.001359112118745 s-1Specific activity α:6.153958363555 × 10+18 Bq g-1
166323199.01502 Ci g-1Spin and parity:
(nuclear angular momentum)0+Charge radius:4.9128(26) femtometer fmYear of discovery:1970
Radioactive Decay
Half-life T½ = 8.5(15) min (minutes) respectively 5.10 × 102 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| EC/β+ | 134Pr | 100 % | 2.882(24) MeV | |
Parent Nuclides
Direct parent isotope is: 134Pm.
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 |
|---|
| 134mNd | 2293.0(4) keV | 410(30) μs | (8)- |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 74) and isobaric (same nucleon number A = 134) with Neodymium-134. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 74 | Isobar A = 134 |
|---|
| 41 | 115Nb | |
| 42 | 116Mo | |
| 43 | 117Tc | |
| 44 | 118Ru | |
| 45 | 119Rh | |
| 46 | 120Pd | |
| 47 | 121Ag | |
| 48 | 122Cd | 134Cd |
| 49 | 123In | 134In |
| 50 | 124Sn | 134Sn |
| 51 | 125Sb | 134Sb |
| 52 | 126Te | 134Te |
| 53 | 127I | 134I |
| 54 | 128Xe | 134Xe |
| 55 | 129Cs | 134Cs |
| 56 | 130Ba | 134Ba |
| 57 | 131La | 134La |
| 58 | 132Ce | 134Ce |
| 59 | 133Pr | 134Pr |
| 60 | 134Nd | 134Nd |
| 61 | 135Pm | 134Pm |
| 62 | 136Sm | 134Sm |
| 63 | 137Eu | 134Eu |
| 64 | 138Gd | 134Gd |
| 65 | 139Tb | |
| 66 | 140Dy | |
| 67 | 141Ho | |
External data and identifiers
Last update: 2020-10-20
Perma link: https://www.chemlin.org/isotope/neodymium-134
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