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Polonium Isotopes






Proton number: 84


Stable Isotopes

There is no Polonium Stable isotopes known

Natural Radioactive isotopes

There is no Polonium Natural Radioactive isotopes known

Artificial Radioactive isotopes


Polonium radioactive isotope number 1: 188Po
Neutrons: 104;
Jn: 0+;
Decay: ε < 100.00 %
α > 0.00 %;
t1/2: 0.0004s ≈ 0.40 ms;

Polonium radioactive isotope number 2: 189Po
Neutrons: 105;
Jn: 7/2-;
Decay: α ~ 100.00 %;
t1/2: 0.0035s ≈ 3.50 ms;

Polonium radioactive isotope number 3: 190Po
Neutrons: 106;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 0.00246s ≈ 2.46 ms;

Polonium radioactive isotope number 4: 191Po
Neutrons: 107;
Jn: 3/2-;
Decay: α : 100.00 %;
t1/2: 0.022s ≈ 22.00 ms;

Polonium radioactive isotope number 5: 191Po
Neutrons: 107;
Jn: 13/2+;
Decay: α : 100.00 %;
t1/2: 0.093s ≈ 93.00 ms;

Polonium radioactive isotope number 6: 192Po
Neutrons: 108;
Jn: 0+;
Decay: α ~ 99.50 %
ε ~ 0.50 %;
t1/2: 0.0332s ≈ 33.20 ms;

Polonium radioactive isotope number 7: 193Po
Neutrons: 109;
Jn: 13/2+;
Decay: α ≤ 100.00 %;
t1/2: 0.245s ;

Polonium radioactive isotope number 8: 193Po
Neutrons: 109;
Jn: 3/2-;
Decay: α ≤ 100.00 %;
t1/2: 0.37s ;

Polonium radioactive isotope number 9: 194Po
Neutrons: 110;
Jn: 0+;
Decay: α ~ 100.00 %
ε;
t1/2: 0.392s ;

Polonium radioactive isotope number 10: 195Po
Neutrons: 111;
Jn: 3/2-;
Decay: α : 75.00 %
ε : 25.00 %;
t1/2: 4.64s ;

Polonium radioactive isotope number 11: 195Po
Neutrons: 111;
Jn: 13/2+;
Decay: α ~ 90.00 %
ε ~ 10.00 %
IT < 0.01 %;
t1/2: 1.92s ;

Polonium radioactive isotope number 12: 196Po
Neutrons: 112;
Jn: 0+;
Decay: α ~ 98.00 %
ε ~ 2.00 %;
t1/2: 5.8s ;

Polonium radioactive isotope number 13: 197Po
Neutrons: 113;
Jn: 3/2-;
Decay: ε : 56.00 %
α : 44.00 %;
t1/2: 84s ;

Polonium radioactive isotope number 14: 197Po
Neutrons: 113;
Jn: 13/2+;
Decay: α : 84.00 %
ε : 16.00 %
IT : 0.01 %;
t1/2: 32s ;

Polonium radioactive isotope number 15: 198Po
Neutrons: 114;
Jn: 0+;
Decay: α : 57.00 %
ε : 43.00 %;
t1/2: 106.2s ;

Polonium radioactive isotope number 16: 199Po
Neutrons: 115;
Jn: 3/2-;
Decay: ε : 92.50 %
α : 7.50 %;
t1/2: 328.2s ≈ 5.47 m;

Polonium radioactive isotope number 17: 199Po
Neutrons: 115;
Jn: 13/2+;
Decay: ε : 73.50 %
α : 24.00 %
IT : 2.50 %;
t1/2: 250.2s ≈ 4.17 m;

Polonium radioactive isotope number 18: 200Po
Neutrons: 116;
Jn: 0+;
Decay: ε : 88.90 %
α : 11.10 %;
t1/2: 654s ≈ 10.90 m;

Polonium radioactive isotope number 19: 201Po
Neutrons: 117;
Jn: 3/2-;
Decay: ε : 98.87 %
α : 1.13 %;
t1/2: 936s ≈ 15.60 m;

Polonium radioactive isotope number 20: 201Po
Neutrons: 117;
Jn: 13/2+;
Decay: IT : 56.20 %
ε : 41.40 %
α : 2.40 %;
t1/2: 537.6s ≈ 8.96 m;

Polonium radioactive isotope number 21: 202Po
Neutrons: 118;
Jn: 0+;
Decay: ε : 98.08 %
α : 1.92 %;
t1/2: 2682s ≈ 44.70 m;

Polonium radioactive isotope number 22: 203Po
Neutrons: 119;
Jn: 5/2-;
Decay: ε : 99.89 %
α : 0.11 %;
t1/2: 2202s ≈ 36.70 m;

Polonium radioactive isotope number 23: 203Po
Neutrons: 119;
Jn: 13/2+;
Decay: IT : 100.00 %
ε;
t1/2: 45s ;

Polonium radioactive isotope number 24: 204Po
Neutrons: 120;
Jn: 0+;
Decay: ε : 99.34 %
α : 0.66 %;
t1/2: 12708s ≈ 3.53 h;

Polonium radioactive isotope number 25: 205Po
Neutrons: 121;
Jn: 5/2-;
Decay: ε : 99.96 %
α : 0.04 %;
t1/2: 6264s ≈ 1.74 h;

Polonium radioactive isotope number 26: 205Po
Neutrons: 121;
Jn: 13/2+;
Decay: IT : 100.00 %;
t1/2: 0.000645s ≈ 0.64 ms;

Polonium radioactive isotope number 27: 205Po
Neutrons: 121;
Jn: 19/2-;
Decay: IT : 100.00 %;
t1/2: 0.0574s ≈ 57.40 ms;

Polonium radioactive isotope number 28: 206Po
Neutrons: 122;
Jn: 0+;
Decay: ε : 94.55 %
α : 5.45 %;
t1/2: 760320s ≈ 8.80 d;

Polonium radioactive isotope number 29: 207Po
Neutrons: 123;
Jn: 5/2-;
Decay: ε : 99.98 %
α : 0.02 %;
t1/2: 20880s ≈ 5.80 h;

Polonium radioactive isotope number 30: 207Po
Neutrons: 123;
Jn: 19/2-;
Decay: IT : 100.00 %;
t1/2: 2.79s ;

Polonium radioactive isotope number 31: 208Po
Neutrons: 124;
Jn: 0+;
Decay: α : 100.00 %
ε;
t1/2: 91391330s ≈ 2.90 y;

Polonium radioactive isotope number 32: 209Po
Neutrons: 125;
Jn: 1/2-;
Decay: α : 99.52 %
ε : 0.48 %;
t1/2: 3216672000s ≈ 102.00 y;

Polonium radioactive isotope number 33: 210Po
Neutrons: 126;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 11955690s ≈ 138.38 d;

Polonium radioactive isotope number 34: 211Po
Neutrons: 127;
Jn: 9/2+;
Decay: α : 100.00 %;
t1/2: 0.516s ;

Polonium radioactive isotope number 35: 211Po
Neutrons: 127;
Jn: 25/2+;
Decay: α : 99.98 %
IT : 0.02 %;
t1/2: 25.2s ;

Polonium radioactive isotope number 36: 212Po
Neutrons: 128;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 2.99E-07s ≈ 0.30 µs;

Polonium radioactive isotope number 37: 212Po
Neutrons: 128;
Jn: 18+;
Decay: α : 99.93 %;
t1/2: 45.1s ;

Polonium radioactive isotope number 38: 213Po
Neutrons: 129;
Jn: 9/2+;
Decay: α : 100.00 %;
t1/2: 3.65E-06s ≈ 3.65 µs;

Polonium radioactive isotope number 39: 214Po
Neutrons: 130;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 0.0001643s ≈ 0.16 ms;

Polonium radioactive isotope number 40: 214Po
Neutrons: 130;
Jn: 0+;
Decay: IT : 99.86 %
α : 0.14 %;
t1/2: 9.9E-11s ≈ 99.00 ps;

Polonium radioactive isotope number 41: 215Po
Neutrons: 131;
Jn: 9/2+;
Decay: α : 100.00 %
β - : 2.3E-4 %;
t1/2: 0.001781s ≈ 1.78 ms;

Polonium radioactive isotope number 42: 216Po
Neutrons: 132;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 0.145s ;

Polonium radioactive isotope number 43: 217Po
Neutrons: 133;
Jn: 9/2+;
Decay: α;
t1/2: 1.53s ;

Polonium radioactive isotope number 44: 218Po
Neutrons: 134;
Jn: 0+;
Decay: α : 99.98 %
β - : 0.02 %;
t1/2: 185.88s ≈ 3.10 m;

Polonium radioactive isotope number 45: 219Po
Neutrons: 135;
Jn: Unknown;
Decay: α ?
β - ?;
t1/2: 120s ≈ 2.00 m;

Polonium radioactive isotope number 46: 220Po
Neutrons: 136;
Jn: 0+;
Decay: β - ?;
t1/2: 3E-07s ≈ 0.30 µs;
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