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Lutetium Isotopes






Proton number: 71


Stable Isotopes


Lutetium stable isotope number 1: 175Lu
Neutrons: 104;
Abundance: 97.41%;
Jn: 7/2+;

Natural Radioactive isotopes


Lutetium radioactive isotope number 1: 176Lu
Neutrons: 105;
Abundance: 2.59%;
Jn: 7-;
Decay: β - : 100.00 %;
t1/2: 1.185754E+18s ≈ 3.760001e+10 y;

Artificial Radioactive isotopes


Lutetium radioactive isotope number 1: 150Lu
Neutrons: 79;
Jn: 2+;
Decay: p : 68.00 %
ε : 32.00 %;
t1/2: 0.043s ≈ 43.00 ms;

Lutetium radioactive isotope number 2: 151Lu
Neutrons: 80;
Jn: 11/2-;
Decay: p : 63.40 %
ε : 36.60 %;
t1/2: 0.0806s ≈ 80.60 ms;

Lutetium radioactive isotope number 3: 152Lu
Neutrons: 81;
Jn: 5-,6-;
Decay: ε : 100.00 %
ε p : 15.00 %;
t1/2: 0.7s ;

Lutetium radioactive isotope number 4: 153Lu
Neutrons: 82;
Jn: 11/2-;
Decay: α ~ 70.00 %
ε ~ 30.00 %;
t1/2: 0.9s ;

Lutetium radioactive isotope number 5: 154Lu
Neutrons: 83;
Jn: 2-;
Decay: ε ?;
t1/2: 2s ;

Lutetium radioactive isotope number 6: 154Lu
Neutrons: 83;
Jn: 9+;
Decay: ε ~ 100.00 %;
t1/2: 1.12s ;

Lutetium radioactive isotope number 7: 155Lu
Neutrons: 84;
Jn: 11/2-;
Decay: α : 90.00 %
ε : 10.00 %;
t1/2: 0.068s ≈ 68.00 ms;

Lutetium radioactive isotope number 8: 155Lu
Neutrons: 84;
Jn: 1/2+;
Decay: α : 76.00 %
ε : 24.00 %;
t1/2: 0.138s ;

Lutetium radioactive isotope number 9: 156Lu
Neutrons: 85;
Jn: 2-;
Decay: α ~ 95.00 %
ε ~ 5.00 %;
t1/2: 0.494s ;

Lutetium radioactive isotope number 10: 156Lu
Neutrons: 85;
Jn: 9+;
Decay: α : 100.00 %;
t1/2: 0.198s ;

Lutetium radioactive isotope number 11: 157Lu
Neutrons: 86;
Jn: 1/2+,3/2+;
Decay: α > 0.00 %;
t1/2: 6.8s ;

Lutetium radioactive isotope number 12: 157Lu
Neutrons: 86;
Jn: 11/2-;
Decay: ε : 94.00 %
α : 6.00 %;
t1/2: 4.79s ;

Lutetium radioactive isotope number 13: 158Lu
Neutrons: 87;
Jn: Unknown;
Decay: ε : 99.09 %
α : 0.91 %;
t1/2: 10.6s ;

Lutetium radioactive isotope number 14: 159Lu
Neutrons: 88;
Jn: Unknown;
Decay: ε : 100.00 %
α : 0.10 %;
t1/2: 12.1s ;

Lutetium radioactive isotope number 15: 160Lu
Neutrons: 89;
Jn: Unknown;
Decay: ε : 100.00 %
α ≤ 1.0E-4 %;
t1/2: 36.1s ;

Lutetium radioactive isotope number 16: 160Lu
Neutrons: 89;
Jn: Unknown;
Decay: ε ≤ 100.00 %
α;
t1/2: 40s ;

Lutetium radioactive isotope number 17: 161Lu
Neutrons: 90;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 77s ;

Lutetium radioactive isotope number 18: 161Lu
Neutrons: 90;
Jn: 9/2-;
Decay: IT ~ 100.00 %;
t1/2: 0.0073s ≈ 7.30 ms;

Lutetium radioactive isotope number 19: 162Lu
Neutrons: 91;
Jn: 1-;
Decay: ε ≤ 100.00 %;
t1/2: 82.2s ;

Lutetium radioactive isotope number 20: 162Lu
Neutrons: 91;
Jn: Unknown;
Decay: ε ≤ 100.00 %;
t1/2: 114s ;

Lutetium radioactive isotope number 21: 162Lu
Neutrons: 91;
Jn: 4-;
Decay: ε ≤ 100.00 %;
t1/2: 90s ;

Lutetium radioactive isotope number 22: 163Lu
Neutrons: 92;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 238.2s ≈ 3.97 m;

Lutetium radioactive isotope number 23: 164Lu
Neutrons: 93;
Jn: 1;
Decay: ε : 100.00 %;
t1/2: 188.4s ≈ 3.14 m;

Lutetium radioactive isotope number 24: 165Lu
Neutrons: 94;
Jn: 1/2+;
Decay: ε : 100.00 %;
t1/2: 644.4s ≈ 10.74 m;

Lutetium radioactive isotope number 25: 166Lu
Neutrons: 95;
Jn: 6-;
Decay: ε : 100.00 %;
t1/2: 159s ≈ 2.65 m;

Lutetium radioactive isotope number 26: 166Lu
Neutrons: 95;
Jn: 3-;
Decay: ε : 58.00 %
IT : 42.00 %;
t1/2: 84.6s ;

Lutetium radioactive isotope number 27: 166Lu
Neutrons: 95;
Jn: 0-;
Decay: ε > 80.00 % IT < 20.00 %;
t1/2: 127.2s ≈ 2.12 m;

Lutetium radioactive isotope number 28: 167Lu
Neutrons: 96;
Jn: 7/2+;
Decay: ε : 100.00 %;
t1/2: 3090s ≈ 51.50 m;

Lutetium radioactive isotope number 29: 167Lu
Neutrons: 96;
Jn: 1/2+;
Decay: IT
ε;
t1/2: 60s ;

Lutetium radioactive isotope number 30: 168Lu
Neutrons: 97;
Jn: 6-;
Decay: ε : 100.00 %;
t1/2: 330s ≈ 5.50 m;

Lutetium radioactive isotope number 31: 168Lu
Neutrons: 97;
Jn: 3+;
Decay: ε > 95.00 %
IT < 5.00 %;
t1/2: 402s ≈ 6.70 m;

Lutetium radioactive isotope number 32: 169Lu
Neutrons: 98;
Jn: 7/2+;
Decay: ε : 100.00 %;
t1/2: 122616s ≈ 34.06 h;

Lutetium radioactive isotope number 33: 169Lu
Neutrons: 98;
Jn: 1/2-;
Decay: IT : 100.00 %;
t1/2: 160s ≈ 2.67 m;

Lutetium radioactive isotope number 34: 170Lu
Neutrons: 99;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 173836.8s ≈ 2.01 d;

Lutetium radioactive isotope number 35: 170Lu
Neutrons: 99;
Jn: 4-;
Decay: IT : 100.00 %;
t1/2: 0.67s ;

Lutetium radioactive isotope number 36: 171Lu
Neutrons: 100;
Jn: 7/2+;
Decay: ε : 100.00 %;
t1/2: 711936s ≈ 8.24 d;

Lutetium radioactive isotope number 37: 171Lu
Neutrons: 100;
Jn: 1/2-;
Decay: IT : 100.00 %;
t1/2: 79s ;

Lutetium radioactive isotope number 38: 172Lu
Neutrons: 101;
Jn: 4-;
Decay: ε : 100.00 %;
t1/2: 578880s ≈ 6.70 d;

Lutetium radioactive isotope number 39: 172Lu
Neutrons: 101;
Jn: 1-;
Decay: IT : 100.00 %;
t1/2: 222s ≈ 3.70 m;

Lutetium radioactive isotope number 40: 173Lu
Neutrons: 102;
Jn: 7/2+;
Decay: ε : 100.00 %;
t1/2: 43204320s ≈ 1.37 y;

Lutetium radioactive isotope number 41: 174Lu
Neutrons: 103;
Jn: 1-;
Decay: ε : 100.00 %;
t1/2: 104384200s ≈ 3.31 y;

Lutetium radioactive isotope number 42: 174Lu
Neutrons: 103;
Jn: 6-;
Decay: IT : 99.38 %
ε : 0.62 %;
t1/2: 12268800s ≈ 142.00 d;

Lutetium radioactive isotope number 43: 176Lu
Neutrons: 105;
Jn: 1-;
Decay: β - : 99.90 %
ε : 0.09 %;
t1/2: 13190.4s ≈ 3.66 h;

Lutetium radioactive isotope number 44: 177Lu
Neutrons: 106;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 574344s ≈ 6.65 d;

Lutetium radioactive isotope number 45: 177Lu
Neutrons: 106;
Jn: 23/2-;
Decay: β - : 78.60 %
IT : 21.40 %;
t1/2: 13862020s ≈ 160.44 d;

Lutetium radioactive isotope number 46: 177Lu
Neutrons: 106;
Jn: 39/2-;
Decay: β - ≤ 100.00 % IT ;
t1/2: 360s ≈ 6.00 m;

Lutetium radioactive isotope number 47: 178Lu
Neutrons: 107;
Jn: 1+;
Decay: β - : 100.00 %;
t1/2: 1704s ≈ 28.40 m;

Lutetium radioactive isotope number 48: 178Lu
Neutrons: 107;
Jn: 9-;
Decay: β - : 100.00 %;
t1/2: 1386s ≈ 23.10 m;

Lutetium radioactive isotope number 49: 179Lu
Neutrons: 108;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 16524s ≈ 4.59 h;

Lutetium radioactive isotope number 50: 180Lu
Neutrons: 109;
Jn: 5+;
Decay: β - : 100.00 %;
t1/2: 342s ≈ 5.70 m;

Lutetium radioactive isotope number 51: 181Lu
Neutrons: 110;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 210s ≈ 3.50 m;

Lutetium radioactive isotope number 52: 182Lu
Neutrons: 111;
Jn: 0,1,2;
Decay: β - : 100.00 %;
t1/2: 120s ≈ 2.00 m;

Lutetium radioactive isotope number 53: 183Lu
Neutrons: 112;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 58s ;

Lutetium radioactive isotope number 54: 184Lu
Neutrons: 113;
Jn: 3+;
Decay: β - : 100.00 %;
t1/2: 20s ;
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