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Lead Isotopes






Proton number: 82


Stable Isotopes


Lead stable isotope number 1: 206Pb
Neutrons: 124;
Abundance: 24.1%;
Jn: 0+;

Lead stable isotope number 2: 207Pb
Neutrons: 125;
Abundance: 22.1%;
Jn: 1/2-;

Lead stable isotope number 3: 208Pb
Neutrons: 126;
Abundance: 52.4%;
Jn: 0+;

Natural Radioactive isotopes


Lead radioactive isotope number 1: 204Pb
Neutrons: 122;
Abundance: 1.4%;
Jn: 0+;
Decay: α ?;
t1/2: 4.41504E+24s ≈ 1.400000e+17 y;

Artificial Radioactive isotopes


Lead radioactive isotope number 1: 178Pb
Neutrons: 96;
Jn: 0+;
Decay: α
ε ?;
t1/2: 0.00023s ≈ 0.23 ms;

Lead radioactive isotope number 2: 179Pb
Neutrons: 97;
Jn: Unknown;
Decay: α ?;
t1/2: 0.003s ≈ 3.00 ms;

Lead radioactive isotope number 3: 180Pb
Neutrons: 98;
Jn: 0+;
Decay: α ≤ 100.00 %;
t1/2: 0.0045s ≈ 4.50 ms;

Lead radioactive isotope number 4: 181Pb
Neutrons: 99;
Jn: 13/2+;
Decay: α < 100.00 %;
t1/2: 0.045s ≈ 45.00 ms;

Lead radioactive isotope number 5: 182Pb
Neutrons: 100;
Jn: 0+;
Decay: α ≤ 100.00 %;
t1/2: 0.055s ≈ 55.00 ms;

Lead radioactive isotope number 6: 183Pb
Neutrons: 101;
Jn: 3/2-;
Decay: α ~ 90.00 %;
t1/2: 0.535s ;

Lead radioactive isotope number 7: 183Pb
Neutrons: 101;
Jn: 13/2+;
Decay: α ~ 100.00 %;
t1/2: 0.415s ;

Lead radioactive isotope number 8: 184Pb
Neutrons: 102;
Jn: 0+;
Decay: ε : 77.00 %
α : 23.00 %;
t1/2: 0.49s ;

Lead radioactive isotope number 9: 185Pb
Neutrons: 103;
Jn: 3/2-;
Decay: α ~ 34.00 %
ε ?;
t1/2: 6.3s ;

Lead radioactive isotope number 10: 185Pb
Neutrons: 103;
Jn: 13/2+;
Decay: α ~ 50.00 %
ε ?;
t1/2: 4.3s ;

Lead radioactive isotope number 11: 186Pb
Neutrons: 104;
Jn: 0+;
Decay: ε : 60.00 %
α : 40.00 %;
t1/2: 4.82s ;

Lead radioactive isotope number 12: 187Pb
Neutrons: 105;
Jn: 3/2-;
Decay: ε : 93.00 %
α : 7.00 %;
t1/2: 15.2s ;

Lead radioactive isotope number 13: 187Pb
Neutrons: 105;
Jn: 13/2+;
Decay: ε : 88.00 %
α : 12.00 %;
t1/2: 18.3s ;

Lead radioactive isotope number 14: 188Pb
Neutrons: 106;
Jn: 0+;
Decay: ε : 90.70 %
α : 9.30 %;
t1/2: 25.1s ;

Lead radioactive isotope number 15: 189Pb
Neutrons: 107;
Jn: 3/2-;
Decay: ε > 99.00 %
α ~ 0.40 %;
t1/2: 51s ;

Lead radioactive isotope number 16: 190Pb
Neutrons: 108;
Jn: 0+;
Decay: ε : 99.60 %
α : 0.40 %;
t1/2: 71s ;

Lead radioactive isotope number 17: 191Pb
Neutrons: 109;
Jn: 3/2-;
Decay: ε : 99.99 %
α : 0.01 %;
t1/2: 79.8s ;

Lead radioactive isotope number 18: 191Pb
Neutrons: 109;
Jn: 13/2+;
Decay: ε : 100.00 %
α ~ 0.02 %;
t1/2: 130.8s ≈ 2.18 m;

Lead radioactive isotope number 19: 192Pb
Neutrons: 110;
Jn: 0+;
Decay: ε : 99.99 %
α : 5.9E-3 %;
t1/2: 210s ≈ 3.50 m;

Lead radioactive isotope number 20: 193Pb
Neutrons: 111;
Jn: 3/2-;
Decay: ε;
t1/2: unknowns ;

Lead radioactive isotope number 21: 193Pb
Neutrons: 111;
Jn: 13/2+;
Decay: ε : 100.00 %;
t1/2: 348s ≈ 5.80 m;

Lead radioactive isotope number 22: 194Pb
Neutrons: 112;
Jn: 0+;
Decay: ε : 100.00 %
α : 7.3E-6 %;
t1/2: 642s ≈ 10.70 m;

Lead radioactive isotope number 23: 195Pb
Neutrons: 113;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 900s ≈ 15.00 m;

Lead radioactive isotope number 24: 195Pb
Neutrons: 113;
Jn: 13/2+;
Decay: ε : 100.00 %;
t1/2: 900s ≈ 15.00 m;

Lead radioactive isotope number 25: 196Pb
Neutrons: 114;
Jn: 0+;
Decay: ε ~ 100.00 %
α ≤ 3.0E-5 %;
t1/2: 2220s ≈ 37.00 m;

Lead radioactive isotope number 26: 197Pb
Neutrons: 115;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 486s ≈ 8.10 m;

Lead radioactive isotope number 27: 197Pb
Neutrons: 115;
Jn: 13/2+;
Decay: ε : 81.00 %
IT : 19.00 %;
t1/2: 2574s ≈ 42.90 m;

Lead radioactive isotope number 28: 198Pb
Neutrons: 116;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 8640s ≈ 2.40 h;

Lead radioactive isotope number 29: 199Pb
Neutrons: 117;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 5400s ≈ 1.50 h;

Lead radioactive isotope number 30: 199Pb
Neutrons: 117;
Jn: 13/2+;
Decay: IT ~ 93.00 %
ε ~ 7.00 %;
t1/2: 732s ≈ 12.20 m;

Lead radioactive isotope number 31: 200Pb
Neutrons: 118;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 77400s ≈ 21.50 h;

Lead radioactive isotope number 32: 201Pb
Neutrons: 119;
Jn: 5/2-;
Decay: ε : 100.00 %;
t1/2: 33588s ≈ 9.33 h;

Lead radioactive isotope number 33: 201Pb
Neutrons: 119;
Jn: 13/2+;
Decay: IT ~ 100.00 %;
t1/2: 60.8s ;

Lead radioactive isotope number 34: 202Pb
Neutrons: 120;
Jn: 0+;
Decay: ε : 100.00 %
α < 1.00 %;
t1/2: 1.65564E+12s ≈ 5.250000e+4 y;

Lead radioactive isotope number 35: 202Pb
Neutrons: 120;
Jn: 9-;
Decay: IT : 90.50 %
ε : 9.50 %;
t1/2: 12708s ≈ 3.53 h;

Lead radioactive isotope number 36: 203Pb
Neutrons: 121;
Jn: 5/2-;
Decay: ε : 100.00 %;
t1/2: 186912s ≈ 2.16 d;

Lead radioactive isotope number 37: 203Pb
Neutrons: 121;
Jn: 13/2+;
Decay: IT : 100.00 %;
t1/2: 6.21s ;

Lead radioactive isotope number 38: 203Pb
Neutrons: 121;
Jn: 29/2-;
Decay: IT : 100.00 %;
t1/2: 0.48s ;

Lead radioactive isotope number 39: 204Pb
Neutrons: 122;
Jn: 9-;
Decay: IT : 100.00 %;
t1/2: 4032s ≈ 1.12 h;

Lead radioactive isotope number 40: 205Pb
Neutrons: 123;
Jn: 5/2-;
Decay: ε : 100.00 %;
t1/2: 5.455728E+14s ≈ 1.730000e+7 y;

Lead radioactive isotope number 41: 205Pb
Neutrons: 123;
Jn: 13/2+;
Decay: IT : 100.00 %;
t1/2: 0.00555s ≈ 5.55 ms;

Lead radioactive isotope number 42: 206Pb
Neutrons: 124;
Jn: 7-;
Decay: IT : 100.00 %;
t1/2: 0.000125s ≈ 0.12 ms;

Lead radioactive isotope number 43: 206Pb
Neutrons: 124;
Jn: 12+;
Decay: IT : 100.00 %;
t1/2: 2.02E-07s ≈ 0.20 µs;

Lead radioactive isotope number 44: 207Pb
Neutrons: 125;
Jn: 13/2+;
Decay: IT : 100.00 %;
t1/2: 0.806s ;

Lead radioactive isotope number 45: 209Pb
Neutrons: 127;
Jn: 9/2+;
Decay: β - : 100.00 %;
t1/2: 11710.8s ≈ 3.25 h;

Lead radioactive isotope number 46: 210Pb
Neutrons: 128;
Jn: 0+;
Decay: β - : 100.00 %
α : 1.9E-6 %;
t1/2: 700099200s ≈ 22.20 y;

Lead radioactive isotope number 47: 211Pb
Neutrons: 129;
Jn: 9/2+;
Decay: β - : 100.00 %;
t1/2: 2166s ≈ 36.10 m;

Lead radioactive isotope number 48: 212Pb
Neutrons: 130;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 38304s ≈ 10.64 h;

Lead radioactive isotope number 49: 213Pb
Neutrons: 131;
Jn: 9/2+;
Decay: β - : 100.00 %;
t1/2: 612s ≈ 10.20 m;

Lead radioactive isotope number 50: 214Pb
Neutrons: 132;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 1608s ≈ 26.80 m;

Lead radioactive isotope number 51: 215Pb
Neutrons: 133;
Jn: Unknown;
Decay: β - : 100.00 %;
t1/2: 36s ;
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