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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