Xenon-132m
Properties and data of the isotope 132mXe.
See also: list of Xenon isotopes.
General data
Name of the isotope:Xenon-132m; Xe-132mSymbol:132mXe or 132m54XeMass number A:132 (= number of nucleons)Atomic number Z:54 (= number of protons)Neutrons N:78Isotopic mass:131.90415509(4) u (atomic weight of Xenon-132m)
Excitation energy: 2752.21(17) keVNuclide mass:131.8745337 u (calculated nuclear mass without electrons)Mass excess:-89.27896 MeVMass defect:1.194260086 u (per nucleus)Nuclear binding energy:1112.44610455 MeV (per nucleus)
8.427622 MeV (average binding energy per nucleon)Half-life:8.39(11) msDecay constant λ:82.615873725858 s-1Specific activity α:3.797896403388 × 10+23 Bq g-1
10264584874022 Ci g-1Spin and parity:
(nuclear angular momentum)(10+)Magnetic dipole moment:μ(μN) = -1.95(5)Nuclear g-factor:gl = -0.195
Radioactive Decay
Half-life T½ = 8.39(11) ms respectively 8.39 × 10-3 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
Iso | 132Xe | 100 % | | |
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 |
---|
132Xe | | stable | 0+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 78) and isobaric (same nucleon number A = 132) with Xenon-132m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 78 | Isobar A = 132 |
43 | 121Tc | |
44 | 122Ru | |
45 | 123Rh | |
46 | 124Pd | |
47 | 125Ag | 132Ag |
48 | 126Cd | 132Cd |
49 | 127In | 132In |
50 | 128Sn | 132Sn |
51 | 129Sb | 132Sb |
52 | 130Te | 132Te |
53 | 131I | 132I |
54 | 132Xe | 132Xe |
55 | 133Cs | 132Cs |
56 | 134Ba | 132Ba |
57 | 135La | 132La |
58 | 136Ce | 132Ce |
59 | 137Pr | 132Pr |
60 | 138Nd | 132Nd |
61 | 139Pm | 132Pm |
62 | 140Sm | 132Sm |
63 | 141Eu | 132Eu |
64 | 142Gd | |
65 | 143Tb | |
66 | 144Dy | |
67 | 145Ho | |
68 | 146Er | |
69 | 147Tm | |
70 | 148Yb | |
71 | 149Lu | |
External data and identifiers
Last update: 2020-10-18
Perma link: https://www.chemlin.org/isotope/xenon-132m
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