Chemical elements
  Thorium
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties

Thorium Isotopes






Proton number: 90


Stable Isotopes

There is no Thorium Stable isotopes known

Natural Radioactive isotopes


Thorium radioactive isotope number 1: 232Th
Neutrons: 142;
Abundance: 100%;
Jn: 0+;
Decay: α : 100.00 %
SF : 1.1E-9 %;
t1/2: 4.41504E+17s ≈ 1.400000e+10 y;

Artificial Radioactive isotopes


Thorium radioactive isotope number 1: 209Th
Neutrons: 119;
Jn: 5/2-;
Decay: α;
t1/2: 0.0038s ≈ 3.80 ms;

Thorium radioactive isotope number 2: 210Th
Neutrons: 120;
Jn: 0+;
Decay: α : 99.00 %
ε ~ 1.00 %;
t1/2: 0.009s ≈ 9.00 ms;

Thorium radioactive isotope number 3: 211Th
Neutrons: 121;
Jn: Unknown;
Decay: α;
t1/2: 0.04s ≈ 40.00 ms;

Thorium radioactive isotope number 4: 212Th
Neutrons: 122;
Jn: 0+;
Decay: α : 100.00 %
ε ~ 0.30 %;
t1/2: 0.03s ≈ 30.00 ms;

Thorium radioactive isotope number 5: 213Th
Neutrons: 123;
Jn: Unknown;
Decay: α ≤ 100.00 %;
t1/2: 0.14s ;

Thorium radioactive isotope number 6: 214Th
Neutrons: 124;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 0.1s ;

Thorium radioactive isotope number 7: 215Th
Neutrons: 125;
Jn: 1/2-;
Decay: α : 100.00 %;
t1/2: 1.2s ;

Thorium radioactive isotope number 8: 216Th
Neutrons: 126;
Jn: 0+;
Decay: α : 100.00 %
ε ~ 0.01 %;
t1/2: 0.028s ≈ 28.00 ms;

Thorium radioactive isotope number 9: 217Th
Neutrons: 127;
Jn: 9/2+;
Decay: α : 100.00 %;
t1/2: 0.000241s ≈ 0.24 ms;

Thorium radioactive isotope number 10: 217Th
Neutrons: 127;
Jn: 15/2-;
Decay: IT : 100.00 %;
t1/2: 1.41E-07s ≈ 0.14 µs;

Thorium radioactive isotope number 11: 218Th
Neutrons: 128;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 1.17E-07s ≈ 0.12 µs;

Thorium radioactive isotope number 12: 219Th
Neutrons: 129;
Jn: Unknown;
Decay: α : 100.00 %;
t1/2: 1.05E-06s ≈ 1.05 µs;

Thorium radioactive isotope number 13: 220Th
Neutrons: 130;
Jn: 0+;
Decay: α : 100.00 %
ε : 2.0E-7 %;
t1/2: 9.7E-06s ≈ 9.70 µs;

Thorium radioactive isotope number 14: 221Th
Neutrons: 131;
Jn: 7/2+;
Decay: α : 100.00 %;
t1/2: 0.00173s ≈ 1.73 ms;

Thorium radioactive isotope number 15: 222Th
Neutrons: 132;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 0.002237s ≈ 2.24 ms;

Thorium radioactive isotope number 16: 223Th
Neutrons: 133;
Jn: 5/2+;
Decay: α : 100.00 %;
t1/2: 0.6s ;

Thorium radioactive isotope number 17: 224Th
Neutrons: 134;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 0.81s ;

Thorium radioactive isotope number 18: 225Th
Neutrons: 135;
Jn: 3/2+;
Decay: α ~ 90.00 %
ε ~ 10.00 %;
t1/2: 523.2s ≈ 8.72 m;

Thorium radioactive isotope number 19: 226Th
Neutrons: 136;
Jn: 0+;
Decay: α : 100.00 %;
t1/2: 1834.2s ≈ 30.57 m;

Thorium radioactive isotope number 20: 227Th
Neutrons: 137;
Jn: 1/2+;
Decay: α : 100.00 %;
t1/2: 1613952s ≈ 18.68 d;

Thorium radioactive isotope number 21: 228Th
Neutrons: 138;
Jn: 0+;
Decay: α : 100.00 %
20O : 1E-11 %;
t1/2: 60284220s ≈ 1.91 y;

Thorium radioactive isotope number 22: 229Th
Neutrons: 139;
Jn: 5/2+;
Decay: α : 100.00 %;
t1/2: 231474200000s ≈ 7.339999e+3 y;

Thorium radioactive isotope number 23: 229Th
Neutrons: 139;
Jn: Unknown;
Decay: α : 100.00 %;
t1/2: 50040s ≈ 13.90 h;

Thorium radioactive isotope number 24: 230Th
Neutrons: 140;
Jn: 0+;
Decay: α : 100.00 %
SF < 4.E-11 %;
t1/2: 2.377184E+12s ≈ 7.538001e+4 y;

Thorium radioactive isotope number 25: 231Th
Neutrons: 141;
Jn: 5/2+;
Decay: β - : 100.00 %
α ~ 4E-11 %;
t1/2: 91872s ≈ 25.52 h;

Thorium radioactive isotope number 26: 233Th
Neutrons: 143;
Jn: 1/2+;
Decay: β - : 100.00 %;
t1/2: 1309.8s ≈ 21.83 m;

Thorium radioactive isotope number 27: 233Th
Neutrons: 143;
Jn: Unknown;
Decay: IT ~ 100.00 %;
t1/2: 5E-08s ≈ 50.00 ns;

Thorium radioactive isotope number 28: 234Th
Neutrons: 144;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 2082240s ≈ 24.10 d;

Thorium radioactive isotope number 29: 235Th
Neutrons: 145;
Jn: 1/2+;
Decay: β - : 100.00 %;
t1/2: 432s ≈ 7.20 m;

Thorium radioactive isotope number 30: 236Th
Neutrons: 146;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 2238s ≈ 37.30 m;

Thorium radioactive isotope number 31: 237Th
Neutrons: 147;
Jn: 5/2+;
Decay: β - : 100.00 %;
t1/2: 282s ≈ 4.70 m;

Thorium radioactive isotope number 32: 238Th
Neutrons: 148;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 564s ≈ 9.40 m;
© Copyright 2008-2012 by atomistry.com