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Tellurium Isotopes






Proton number: 52


Stable Isotopes


Tellurium stable isotope number 1: 122Te
Neutrons: 70;
Abundance: 2.55%;
Jn: 0+;

Tellurium stable isotope number 2: 124Te
Neutrons: 72;
Abundance: 4.74%;
Jn: 0+;

Tellurium stable isotope number 3: 125Te
Neutrons: 73;
Abundance: 7.07%;
Jn: 1/2+;

Tellurium stable isotope number 4: 126Te
Neutrons: 74;
Abundance: 18.84%;
Jn: 0+;

Natural Radioactive isotopes


Tellurium radioactive isotope number 1: 120Te
Neutrons: 68;
Abundance: 0.09%;
Jn: 0+;
Decay: 2ε;
t1/2: 6.93792E+23s ≈ 2.200000e+16 y;

Tellurium radioactive isotope number 2: 123Te
Neutrons: 71;
Abundance: 0.89%;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 2.901312E+24s ≈ 9.200000e+16 y;

Tellurium radioactive isotope number 3: 128Te
Neutrons: 76;
Abundance: 31.74%;
Jn: 0+;
Decay: 2β - : 100.00 %;
t1/2: 2.775168E+26s ≈ 8.800000e+18 y;

Tellurium radioactive isotope number 4: 130Te
Neutrons: 78;
Abundance: 34.08%;
Jn: 0+;
Decay: 2β - : 100.00 %;
t1/2: 1.5768E+31s ≈ 5.000000e+23 y;

Artificial Radioactive isotopes


Tellurium radioactive isotope number 1: 105Te
Neutrons: 53;
Jn: 5/2+;
Decay: α ~ 100.00 %;
t1/2: 6.2E-07s ≈ 0.62 µs;

Tellurium radioactive isotope number 2: 106Te
Neutrons: 54;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 7E-05s ≈ 70.00 µs;

Tellurium radioactive isotope number 3: 107Te
Neutrons: 55;
Jn: Unknown;
Decay: α : 70.00 %
ε : 30.00 %;
t1/2: 0.0031s ≈ 3.10 ms;

Tellurium radioactive isotope number 4: 108Te
Neutrons: 56;
Jn: 0+;
Decay: ε : 51.00 %
α : 49.00 %
ε p : 2.40 %;
t1/2: 2.1s ;

Tellurium radioactive isotope number 5: 109Te
Neutrons: 57;
Jn: 5/2+;
Decay: ε : 96.10 %
ε p : 9.40 %
α : 3.90 %
ε α < 5.0E-3 %;
t1/2: 4.6s ;

Tellurium radioactive isotope number 6: 110Te
Neutrons: 58;
Jn: 0+;
Decay: ε ~ 100.00 %
α ~ 3.0E-3 %;
t1/2: 18.6s ;

Tellurium radioactive isotope number 7: 111Te
Neutrons: 59;
Jn: 5/2+;
Decay: ε : 100.00 %
ε p;
t1/2: 19.3s ;

Tellurium radioactive isotope number 8: 112Te
Neutrons: 60;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 120s ≈ 2.00 m;

Tellurium radioactive isotope number 9: 113Te
Neutrons: 61;
Jn: 7/2+;
Decay: ε : 100.00 %;
t1/2: 102s ;

Tellurium radioactive isotope number 10: 114Te
Neutrons: 62;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 912s ≈ 15.20 m;

Tellurium radioactive isotope number 11: 115Te
Neutrons: 63;
Jn: 7/2+;
Decay: ε : 100.00 %;
t1/2: 348s ≈ 5.80 m;

Tellurium radioactive isotope number 12: 115Te
Neutrons: 63;
Jn: 1/2+;
Decay: ε ≤ 100.00 %
IT;
t1/2: 402s ≈ 6.70 m;

Tellurium radioactive isotope number 13: 115Te
Neutrons: 63;
Jn: 11/2-;
Decay: IT : 100.00 %;
t1/2: 7.5E-06s ≈ 7.50 µs;

Tellurium radioactive isotope number 14: 116Te
Neutrons: 64;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 8964s ≈ 2.49 h;

Tellurium radioactive isotope number 15: 117Te
Neutrons: 65;
Jn: 1/2+;
Decay: ε : 100.00 %
ε : 25.00 %;
t1/2: 3720s ≈ 1.03 h;

Tellurium radioactive isotope number 16: 117Te
Neutrons: 65;
Jn: 11/2-;
Decay: IT : 100.00 %;
t1/2: 0.103s ;

Tellurium radioactive isotope number 17: 118Te
Neutrons: 66;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 518400s ≈ 6.00 d;

Tellurium radioactive isotope number 18: 119Te
Neutrons: 67;
Jn: 1/2+;
Decay: ε : 100.00 %
ε : 2.06 %;
t1/2: 57780s ≈ 16.05 h;

Tellurium radioactive isotope number 19: 119Te
Neutrons: 67;
Jn: 11/2-;
Decay: ε : 100.00 %
ε : 0.41 %
IT < 8.0E-3 %;
t1/2: 406080s ≈ 4.70 d;

Tellurium radioactive isotope number 20: 121Te
Neutrons: 69;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 1655424s ≈ 19.16 d;

Tellurium radioactive isotope number 21: 121Te
Neutrons: 69;
Jn: 11/2-;
Decay: IT : 88.60 %
ε : 11.40 %;
t1/2: 13305600s ≈ 154.00 d;

Tellurium radioactive isotope number 22: 123Te
Neutrons: 71;
Jn: 11/2-;
Decay: IT : 100.00 %;
t1/2: 10298880s ≈ 119.20 d;

Tellurium radioactive isotope number 23: 125Te
Neutrons: 73;
Jn: 11/2-;
Decay: IT : 100.00 %;
t1/2: 4959360s ≈ 57.40 d;

Tellurium radioactive isotope number 24: 127Te
Neutrons: 75;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 33660s ≈ 9.35 h;

Tellurium radioactive isotope number 25: 127Te
Neutrons: 75;
Jn: 11/2-;
Decay: IT : 97.60 %
β - : 2.40 %;
t1/2: 9417600s ≈ 109.00 d;

Tellurium radioactive isotope number 26: 129Te
Neutrons: 77;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 4176s ≈ 1.16 h;

Tellurium radioactive isotope number 27: 129Te
Neutrons: 77;
Jn: 11/2-;
Decay: IT : 63.00 %
β - : 37.00 %;
t1/2: 2903040s ≈ 33.60 d;

Tellurium radioactive isotope number 28: 131Te
Neutrons: 79;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 1500s ≈ 25.00 m;

Tellurium radioactive isotope number 29: 131Te
Neutrons: 79;
Jn: 11/2-;
Decay: β - : 74.10 %
IT : 25.90 %;
t1/2: 119700s ≈ 33.25 h;

Tellurium radioactive isotope number 30: 131Te
Neutrons: 79;
Jn: 23/2+;
Decay: IT : 100.00 %;
t1/2: 0.093s ≈ 93.00 ms;

Tellurium radioactive isotope number 31: 132Te
Neutrons: 80;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 276825.6s ≈ 3.20 d;

Tellurium radioactive isotope number 32: 132Te
Neutrons: 80;
Jn: 7-;
Decay: IT : 100.00 %;
t1/2: 2.81E-05s ≈ 28.10 µs;

Tellurium radioactive isotope number 33: 132Te
Neutrons: 80;
Jn: 10+;
Decay: IT : 100.00 %;
t1/2: 3.7E-06s ≈ 3.70 µs;

Tellurium radioactive isotope number 34: 133Te
Neutrons: 81;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 750s ≈ 12.50 m;

Tellurium radioactive isotope number 35: 133Te
Neutrons: 81;
Jn: 11/2-;
Decay: β - : 82.50 %
IT : 17.50 %;
t1/2: 3324s ≈ 55.40 m;

Tellurium radioactive isotope number 36: 134Te
Neutrons: 82;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 2508s ≈ 41.80 m;

Tellurium radioactive isotope number 37: 135Te
Neutrons: 83;
Jn: 7/2-;
Decay: β - : 100.00 %;
t1/2: 19s ;

Tellurium radioactive isotope number 38: 136Te
Neutrons: 84;
Jn: 0+;
Decay: β - : 100.00 %
β -n : 1.31 %;
t1/2: 17.63s ;

Tellurium radioactive isotope number 39: 137Te
Neutrons: 85;
Jn: 7/2-;
Decay: β - : 100.00 %
β -n : 2.69 %;
t1/2: 2.49s ;

Tellurium radioactive isotope number 40: 138Te
Neutrons: 86;
Jn: 0+;
Decay: β - : 100.00 %
β -n : 6.30 %;
t1/2: 1.4s ;

Tellurium radioactive isotope number 41: 139Te
Neutrons: 87;
Jn: 7/2-;
Decay: β -n
β -;
t1/2: 1.5E-07s ≈ 0.15 µs;

Tellurium radioactive isotope number 42: 140Te
Neutrons: 88;
Jn: 0+;
Decay: β -n ?
β - ?;
t1/2: 1.5E-07s ≈ 0.15 µs;

Tellurium radioactive isotope number 43: 141Te
Neutrons: 89;
Jn: Unknown;
Decay: β -n ?
β - ?;
t1/2: 1.5E-07s ≈ 0.15 µs;

Tellurium radioactive isotope number 44: 142Te
Neutrons: 90;
Jn: 0+;
Decay: β - ?;
t1/2: 1.5E-07s ≈ 0.15 µs;
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