Tellurium-133m
Properties and data of the isotope 133Te.
See also: list of Tellurium isotopes.
General data
Name of the isotope:Tellurium-133m ; Te-133mSymbol:133Te or 13352TeMass number A:133 (= number of nucleons)Atomic number Z:52 (= number of protons)Neutrons N:81Isotopic mass:132.9109633(22) u (atomic weight of Tellurium-133m )
Excitation energy: 334.26(4) keVNuclide mass:132.8824389 u (calculated nuclear mass without electrons)Mass excess:-82.93715 MeVMass defect:1.19779656 u (per nucleus)Nuclear binding energy:1115.74030886 MeV (per nucleus)
8.38902488 MeV (average binding energy per nucleon)Half-life:55.4(4) minDecay constant λ:0.00020852803265943 s-1Specific activity α:9.513524135761 × 10+17 Bq g-1
25712227.393951 Ci g-1Spin and parity:
(nuclear angular momentum)(11/2-)Magnetic dipole moment:μ(μN) = (-) 1.129(7)Quadrupole moment Q:0.28(14) barn (100 fm2)
Radioactive Decay
Half-life T½ = 55.4(4) min (minutes) respectively 3.324 × 103 seconds s.
| Decay mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 133I | 83.5(20) % | | |
| Iso | 133Te | 16.5(20) % | | |
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 |
|---|
| 133Te | | 12.5(3) min | (3/2+) |
| 133m+Te | | | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 81) and isobaric (same nucleon number A = 133) with Tellurium-133m . Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| OZ | Isotone N = 81 | Isobar A = 133 |
|---|
| 45 | 126Rh | |
| 46 | 127Pd | |
| 47 | 128Ag | |
| 48 | 129Cd | 133Cd |
| 49 | 130In | 133In |
| 50 | 131Sn | 133Sn |
| 51 | 132Sb | 133Sb |
| 52 | 133Te | 133Te |
| 53 | 134I | 133I |
| 54 | 135Xe | 133Xe |
| 55 | 136Cs | 133Cs |
| 56 | 137Ba | 133Ba |
| 57 | 138La | 133La |
| 58 | 139Ce | 133Ce |
| 59 | 140Pr | 133Pr |
| 60 | 141Nd | 133Nd |
| 61 | 142Pm | 133Pm |
| 62 | 143Sm | 133Sm |
| 63 | 144Eu | 133Eu |
| 64 | 145Gd | |
| 65 | 146Tb | |
| 66 | 147Dy | |
| 67 | 148Ho | |
| 68 | 149Er | |
| 69 | 150Tm | |
| 70 | 151Yb | |
| 71 | 152Lu | |
| 72 | 153Hf | |
Last update: 2020-10-18
Perma link: https://www.chemlin.org/isotope/tellurium-133m
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