Xenon-141
Properties and data of the isotope 141Xe.
See also: list of Xenon isotopes.
General data
Name of the isotope:Xenon-141; Xe-141Symbol:141Xe or 14154XeMass number A:141 (= number of nucleons)Atomic number Z:54 (= number of protons)Neutrons N:87Isotopic mass:140.926787(4) u (atomic weight of Xenon-141)Nuclide mass:140.8971656 u (calculated nuclear mass without electrons)Mass excess:-68.19747 MeVMass defect:1.24961242 u (per nucleus)Nuclear binding energy:1164.00647156 MeV (per nucleus)
8.25536505 MeV (average binding energy per nucleon)Separation energy:SN = 3.282(4) MeV (first neutron)
SP = 11.880(12) MeV (first proton)Half-life:1.73(1) sDecay constant λ:0.40066311015026 s-1Specific activity α:1.723464061932 × 10+21 Bq g-1
46580109781.954 Ci g-1Spin and parity:
(nuclear angular momentum)5/2(-)Magnetic dipole moment:μ(μN) = + 0.010(4)Quadrupole moment Q:-0.58(2) barn (100 fm2)Nuclear g-factor:gl = 0.004Charge radius:4.8694(147) femtometer fmYear of discovery:1951
Radioactive Decay
Half-life T½ = 1.73(1) s.
| Decay mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 141Cs | 99.4 % | 6.28(1) MeV | |
| β-, n | 140Cs | 0.044(5) % | 0.781(9) MeV | |
Parent Nuclides
Direct parent isotopes are: 141I, 248Cm.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 87) and isobaric (same nucleon number A = 141) with Xenon-141. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| OZ | Isotone N = 87 | Isobar A = 141 |
|---|
| 49 | 136In | |
| 50 | 137Sn | |
| 51 | 138Sb | 141Sb |
| 52 | 139Te | 141Te |
| 53 | 140I | 141I |
| 54 | 141Xe | 141Xe |
| 55 | 142Cs | 141Cs |
| 56 | 143Ba | 141Ba |
| 57 | 144La | 141La |
| 58 | 145Ce | 141Ce |
| 59 | 146Pr | 141Pr |
| 60 | 147Nd | 141Nd |
| 61 | 148Pm | 141Pm |
| 62 | 149Sm | 141Sm |
| 63 | 150Eu | 141Eu |
| 64 | 151Gd | 141Gd |
| 65 | 152Tb | 141Tb |
| 66 | 153Dy | 141Dy |
| 67 | 154Ho | 141Ho |
| 68 | 155Er | |
| 69 | 156Tm | |
| 70 | 157Yb | |
| 71 | 158Lu | |
| 72 | 159Hf | |
| 73 | 160Ta | |
| 74 | 161W | |
| 75 | 162Re | |
| 76 | 163Os | |
| 77 | 164Ir | |
External data and identifiers
Last update: 2020-10-18
Perma link: https://www.chemlin.org/isotope/xenon-141
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