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Holmium Isotopes

Proton number: 67

Stable Isotopes


Holmium stable isotope number 1: 165Ho
Neutrons: 98;
Abundance: 100%;
Jn: 7/2-;

Natural Radioactive isotopes

There is no Holmium Natural Radioactive isotopes known

Artificial Radioactive isotopes


Holmium radioactive isotope number 1: 140Ho
Neutrons: 73;
Jn: 6-,0-,8+;
Decay: p : 100.00 %;
t1/2: 0.006s ≈ 6.00 ms;

Holmium radioactive isotope number 2: 141Ho
Neutrons: 74;
Jn: 7/2-;
Decay: p : 100.00 %;
t1/2: 0.0041s ≈ 4.10 ms;

Holmium radioactive isotope number 3: 142Ho
Neutrons: 75;
Jn: Unknown;
Decay: ε
ε p;
t1/2: 0.3s ;

Holmium radioactive isotope number 4: 143Ho
Neutrons: 76;
Jn: Unknown;
Decay: ε ?
ε p ?;
t1/2: 2E-07s ≈ 0.20 µs;

Holmium radioactive isotope number 5: 144Ho
Neutrons: 77;
Jn: Unknown;
Decay: ε
ε p;
t1/2: 0.7s ;

Holmium radioactive isotope number 6: 145Ho
Neutrons: 78;
Jn: Unknown;
Decay: ε : 100.00 %;
t1/2: 2.4s ;

Holmium radioactive isotope number 7: 146Ho
Neutrons: 79;
Jn: 10+;
Decay: ε : 100.00 %;
t1/2: 3.6s ;

Holmium radioactive isotope number 8: 147Ho
Neutrons: 80;
Jn: 11/2-;
Decay: ε : 100.00 %;
t1/2: 5.8s ;

Holmium radioactive isotope number 9: 148Ho
Neutrons: 81;
Jn: 1+;
Decay: ε : 100.00 %;
t1/2: 2.2s ;

Holmium radioactive isotope number 10: 148Ho
Neutrons: 81;
Jn: 6-;
Decay: ε : 100.00 %
ε p : 0.08 %;
t1/2: 9.59s ;

Holmium radioactive isotope number 11: 149Ho
Neutrons: 82;
Jn: 11/2-;
Decay: ε : 100.00 %;
t1/2: 21.1s ;

Holmium radioactive isotope number 12: 149Ho
Neutrons: 82;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 56s ;

Holmium radioactive isotope number 13: 150Ho
Neutrons: 83;
Jn: 2-;
Decay: ε : 100.00 %;
t1/2: 72s ;

Holmium radioactive isotope number 14: 150Ho
Neutrons: 83;
Jn: 9+;
Decay: ε : 100.00 %;
t1/2: 23.3s ;

Holmium radioactive isotope number 15: 151Ho
Neutrons: 84;
Jn: 11/2-;
Decay: ε : 78.00 %
α : 22.00 %;
t1/2: 35.2s ;

Holmium radioactive isotope number 16: 151Ho
Neutrons: 84;
Jn: 1/2+;
Decay: α : 80.00 %
ε : 20.00 %;
t1/2: 47.2s ;

Holmium radioactive isotope number 17: 152Ho
Neutrons: 85;
Jn: 2-;
Decay: ε : 88.00 %
α : 12.00 %;
t1/2: 161.8s ≈ 2.70 m;

Holmium radioactive isotope number 18: 152Ho
Neutrons: 85;
Jn: 9+;
Decay: ε : 89.20 %
α : 10.80 %;
t1/2: 50s ;

Holmium radioactive isotope number 19: 153Ho
Neutrons: 86;
Jn: 11/2-;
Decay: ε : 99.95 %
α : 0.05 %;
t1/2: 120.6s ≈ 2.01 m;

Holmium radioactive isotope number 20: 153Ho
Neutrons: 86;
Jn: 1/2+;
Decay: ε : 99.82 %
α : 0.18 %;
t1/2: 558s ≈ 9.30 m;

Holmium radioactive isotope number 21: 154Ho
Neutrons: 87;
Jn: 2-;
Decay: ε : 99.98 %
α : 0.02 %;
t1/2: 705.6s ≈ 11.76 m;

Holmium radioactive isotope number 22: 154Ho
Neutrons: 87;
Jn: 8+;
Decay: ε : 100.00 %
α < 1.0E-3 %
IT ~ 0.00 %;
t1/2: 186s ≈ 3.10 m;

Holmium radioactive isotope number 23: 155Ho
Neutrons: 88;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 2880s ≈ 48.00 m;

Holmium radioactive isotope number 24: 156Ho
Neutrons: 89;
Jn: 4-;
Decay: ε : 100.00 %;
t1/2: 3360s ≈ 56.00 m;

Holmium radioactive isotope number 25: 156Ho
Neutrons: 89;
Jn: 1-;
Decay: IT : 100.00 %;
t1/2: 9.5s ;

Holmium radioactive isotope number 26: 156Ho
Neutrons: 89;
Jn: 9+;
Decay: ε : 75.00 % IT : 25.00 %;
t1/2: 468s ≈ 7.80 m;

Holmium radioactive isotope number 27: 157Ho
Neutrons: 90;
Jn: 7/2-;
Decay: ε : 100.00 %;
t1/2: 756s ≈ 12.60 m;

Holmium radioactive isotope number 28: 158Ho
Neutrons: 91;
Jn: 5+;
Decay: ε : 100.00 %;
t1/2: 678s ≈ 11.30 m;

Holmium radioactive isotope number 29: 158Ho
Neutrons: 91;
Jn: 2-;
Decay: IT > 81.00 %
ε < 19.00 %;
t1/2: 1680s ≈ 28.00 m;

Holmium radioactive isotope number 30: 158Ho
Neutrons: 91;
Jn: 9+;
Decay: ε ≥ 93.00 % IT ≤ 7.00 %;
t1/2: 1278s ≈ 21.30 m;

Holmium radioactive isotope number 31: 159Ho
Neutrons: 92;
Jn: 7/2-;
Decay: ε : 100.00 %;
t1/2: 1983s ≈ 33.05 m;

Holmium radioactive isotope number 32: 159Ho
Neutrons: 92;
Jn: 1/2+;
Decay: IT : 100.00 %;
t1/2: 8.3s ;

Holmium radioactive isotope number 33: 160Ho
Neutrons: 93;
Jn: 5+;
Decay: ε : 100.00 %;
t1/2: 1536s ≈ 25.60 m;

Holmium radioactive isotope number 34: 160Ho
Neutrons: 93;
Jn: 2-;
Decay: IT : 73.00 %
ε : 27.00 %;
t1/2: 18072s ≈ 5.02 h;

Holmium radioactive isotope number 35: 160Ho
Neutrons: 93;
Jn: 9+;
Decay: IT : 100.00 %;
t1/2: 3s ;

Holmium radioactive isotope number 36: 161Ho
Neutrons: 94;
Jn: 7/2-;
Decay: ε : 100.00 %;
t1/2: 8928s ≈ 2.48 h;

Holmium radioactive isotope number 37: 161Ho
Neutrons: 94;
Jn: 1/2+;
Decay: IT : 100.00 %;
t1/2: 6.76s ;

Holmium radioactive isotope number 38: 162Ho
Neutrons: 95;
Jn: 1+;
Decay: ε : 100.00 %;
t1/2: 900s ≈ 15.00 m;

Holmium radioactive isotope number 39: 162Ho
Neutrons: 95;
Jn: 6-;
Decay: IT : 62.00 %
ε : 38.00 %;
t1/2: 4020s ≈ 1.12 h;

Holmium radioactive isotope number 40: 163Ho
Neutrons: 96;
Jn: 7/2-;
Decay: ε : 100.00 %;
t1/2: 144119500000s ≈ 4.569999e+3 y;

Holmium radioactive isotope number 41: 163Ho
Neutrons: 96;
Jn: 1/2+;
Decay: IT : 100.00 %;
t1/2: 1.09s ;

Holmium radioactive isotope number 42: 164Ho
Neutrons: 97;
Jn: 1+;
Decay: ε : 60.00 %
β - : 40.00 %;
t1/2: 1740s ≈ 29.00 m;

Holmium radioactive isotope number 43: 164Ho
Neutrons: 97;
Jn: 6-;
Decay: IT : 100.00 %;
t1/2: 2250s ≈ 37.50 m;

Holmium radioactive isotope number 44: 166Ho
Neutrons: 99;
Jn: 0-;
Decay: β - : 100.00 %;
t1/2: 96588s ≈ 26.83 h;

Holmium radioactive isotope number 45: 166Ho
Neutrons: 99;
Jn: 7-;
Decay: β - : 100.00 %;
t1/2: 37843200000s ≈ 1.200000e+3 y;

Holmium radioactive isotope number 46: 166Ho
Neutrons: 99;
Jn: 3+;
Decay: IT : 100.00 %;
t1/2: 0.000185s ≈ 0.18 ms;

Holmium radioactive isotope number 47: 167Ho
Neutrons: 100;
Jn: 7/2-;
Decay: β - : 100.00 %;
t1/2: 10810.8s ≈ 3.00 h;

Holmium radioactive isotope number 48: 168Ho
Neutrons: 101;
Jn: 3+;
Decay: β - : 100.00 %;
t1/2: 179.4s ≈ 2.99 m;

Holmium radioactive isotope number 49: 168Ho
Neutrons: 101;
Jn: 6+;
Decay: IT ≥ 99.50 %
β - ≤ 0.50 %;
t1/2: 132s ≈ 2.20 m;

Holmium radioactive isotope number 50: 169Ho
Neutrons: 102;
Jn: 7/2-;
Decay: β - : 100.00 %;
t1/2: 283.2s ≈ 4.72 m;

Holmium radioactive isotope number 51: 170Ho
Neutrons: 103;
Jn: 6+;
Decay: β - : 100.00 %;
t1/2: 165.6s ≈ 2.76 m;

Holmium radioactive isotope number 52: 170Ho
Neutrons: 103;
Jn: 1+;
Decay: β - : 100.00 %;
t1/2: 43s ;

Holmium radioactive isotope number 53: 171Ho
Neutrons: 104;
Jn: 7/2-;
Decay: β - : 100.00 %;
t1/2: 53s ;

Holmium radioactive isotope number 54: 172Ho
Neutrons: 105;
Jn: Unknown;
Decay: β - : 100.00 %;
t1/2: 25s ;

Holmium radioactive isotope number 55: 173Ho
Neutrons: 106;
Jn: Unknown;
Decay: β - ?;
t1/2: 10s ;

Holmium radioactive isotope number 56: 174Ho
Neutrons: 107;
Jn: Unknown;
Decay: β - ?;
t1/2: 8s ;

Holmium radioactive isotope number 57: 175Ho
Neutrons: 108;
Jn: Unknown;
Decay: β - ?;
t1/2: 5s ;

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