Chemical elements
  Dysprosium
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Dysprosium Isotopes






Proton number: 66


Stable Isotopes


Dysprosium stable isotope number 1: 156Dy
Neutrons: 90;
Abundance: 0.06%;
Jn: 0+;

Dysprosium stable isotope number 2: 158Dy
Neutrons: 92;
Abundance: 0.1%;
Jn: 0+;

Dysprosium stable isotope number 3: 160Dy
Neutrons: 94;
Abundance: 2.34%;
Jn: 0+;

Dysprosium stable isotope number 4: 161Dy
Neutrons: 95;
Abundance: 18.91%;
Jn: 5/2+;

Dysprosium stable isotope number 5: 162Dy
Neutrons: 96;
Abundance: 25.51%;
Jn: 0+;

Dysprosium stable isotope number 6: 163Dy
Neutrons: 97;
Abundance: 24.9%;
Jn: 5/2-;

Dysprosium stable isotope number 7: 164Dy
Neutrons: 98;
Abundance: 28.18%;
Jn: 0+;

Natural Radioactive isotopes

There is no Dysprosium Natural Radioactive isotopes known

Artificial Radioactive isotopes


Dysprosium radioactive isotope number 1: 138Dy
Neutrons: 72;
Jn: 0+;
Decay: ε ?;
t1/2: 0.2s ;

Dysprosium radioactive isotope number 2: 139Dy
Neutrons: 73;
Jn: 7/2+;
Decay: ε p
ε;
t1/2: 0.6s ;

Dysprosium radioactive isotope number 3: 141Dy
Neutrons: 75;
Jn: 9/2-;
Decay: ε : 100.00 %
ε p;
t1/2: 0.9s ;

Dysprosium radioactive isotope number 4: 142Dy
Neutrons: 76;
Jn: 0+;
Decay: ε : 100.00 %
ε p : 0.06 %;
t1/2: 2.3s ;

Dysprosium radioactive isotope number 5: 143Dy
Neutrons: 77;
Jn: 1/2+;
Decay: ε : 100.00 %
ε p;
t1/2: 5.6s ;

Dysprosium radioactive isotope number 6: 143Dy
Neutrons: 77;
Jn: 11/2-;
Decay: ε : 100.00 %
ε p;
t1/2: 3s ;

Dysprosium radioactive isotope number 7: 144Dy
Neutrons: 78;
Jn: 0+;
Decay: ε : 100.00 %
ε p;
t1/2: 9.1s ;

Dysprosium radioactive isotope number 8: 145Dy
Neutrons: 79;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 10.5s ;

Dysprosium radioactive isotope number 9: 145Dy
Neutrons: 79;
Jn: 11/2-;
Decay: ε : 100.00 %;
t1/2: 13.6s ;

Dysprosium radioactive isotope number 10: 146Dy
Neutrons: 80;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 29s ;

Dysprosium radioactive isotope number 11: 146Dy
Neutrons: 80;
Jn: 10+;
Decay: IT : 100.00 %;
t1/2: 0.15s ;

Dysprosium radioactive isotope number 12: 147Dy
Neutrons: 81;
Jn: 1/2+;
Decay: ε : 100.00 %
ε p > 0.00 %;
t1/2: 40s ;

Dysprosium radioactive isotope number 13: 147Dy
Neutrons: 81;
Jn: 11/2-;
Decay: ε : 65.00 %
IT : 35.00 %;
t1/2: 55.7s ;

Dysprosium radioactive isotope number 14: 148Dy
Neutrons: 82;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 198s ≈ 3.30 m;

Dysprosium radioactive isotope number 15: 149Dy
Neutrons: 83;
Jn: 7/2-;
Decay: ε : 100.00 %;
t1/2: 252s ≈ 4.20 m;

Dysprosium radioactive isotope number 16: 149Dy
Neutrons: 83;
Jn: 27/2-;
Decay: IT : 99.30 %
ε : 0.70 %;
t1/2: 0.49s ;

Dysprosium radioactive isotope number 17: 150Dy
Neutrons: 84;
Jn: 0+;
Decay: ε : 64.00 %
α : 36.00 %;
t1/2: 430.2s ≈ 7.17 m;

Dysprosium radioactive isotope number 18: 151Dy
Neutrons: 85;
Jn: 7/2-;
Decay: ε : 94.40 %
α : 5.60 %;
t1/2: 1074s ≈ 17.90 m;

Dysprosium radioactive isotope number 19: 152Dy
Neutrons: 86;
Jn: 0+;
Decay: ε : 99.90 %
α : 0.10 %;
t1/2: 8568s ≈ 2.38 h;

Dysprosium radioactive isotope number 20: 153Dy
Neutrons: 87;
Jn: 7/2-;
Decay: ε : 99.99 %
α : 9.4E-3 %;
t1/2: 23040s ≈ 6.40 h;

Dysprosium radioactive isotope number 21: 154Dy
Neutrons: 88;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 9.4608E+13s ≈ 3.000000e+6 y;

Dysprosium radioactive isotope number 22: 155Dy
Neutrons: 89;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 35640s ≈ 9.90 h;

Dysprosium radioactive isotope number 23: 157Dy
Neutrons: 91;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 29304s ≈ 8.14 h;

Dysprosium radioactive isotope number 24: 159Dy
Neutrons: 93;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 12476160s ≈ 144.40 d;

Dysprosium radioactive isotope number 25: 165Dy
Neutrons: 99;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 8402.4s ≈ 2.33 h;

Dysprosium radioactive isotope number 26: 165Dy
Neutrons: 99;
Jn: 1/2-;
Decay: IT : 97.76 %
β - : 2.24 %;
t1/2: 75.42s ;

Dysprosium radioactive isotope number 27: 166Dy
Neutrons: 100;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 293760s ≈ 3.40 d;

Dysprosium radioactive isotope number 28: 167Dy
Neutrons: 101;
Jn: 1/2-;
Decay: β - : 100.00 %;
t1/2: 372s ≈ 6.20 m;

Dysprosium radioactive isotope number 29: 168Dy
Neutrons: 102;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 522s ≈ 8.70 m;

Dysprosium radioactive isotope number 30: 169Dy
Neutrons: 103;
Jn: 5/2-;
Decay: β - : 100.00 %;
t1/2: 39s ;

Dysprosium radioactive isotope number 31: 170Dy
Neutrons: 104;
Jn: 0+;
Decay: β - ?;
t1/2: 30s ;

Dysprosium radioactive isotope number 32: 171Dy
Neutrons: 105;
Jn: Unknown;
Decay: β -;
t1/2: 6s ;

Dysprosium radioactive isotope number 33: 172Dy
Neutrons: 106;
Jn: 0+;
Decay: β -;
t1/2: 3s ;

Dysprosium radioactive isotope number 34: 173Dy
Neutrons: 107;
Jn: Unknown;
Decay: β - ?;
t1/2: 2s ;
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