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Praseodymium Isotopes

Proton number: 59

Stable Isotopes


Praseodymium stable isotope number 1: 141Pr
Neutrons: 82;
Abundance: 100%;
Jn: 5/2+;

Natural Radioactive isotopes

There is no Praseodymium Natural Radioactive isotopes known

Artificial Radioactive isotopes


Praseodymium radioactive isotope number 1: 121Pr
Neutrons: 62;
Jn: 3/2-;
Decay: p;
t1/2: 1.4s ;

Praseodymium radioactive isotope number 2: 122Pr
Neutrons: 63;
Jn: Unknown;
Decay: ε ?;
t1/2: 0.5s ;

Praseodymium radioactive isotope number 3: 123Pr
Neutrons: 64;
Jn: Unknown;
Decay: ε ?;
t1/2: 0.8s ;

Praseodymium radioactive isotope number 4: 124Pr
Neutrons: 65;
Jn: Unknown;
Decay: ε : 100.00 %
ε p;
t1/2: 1.2s ;

Praseodymium radioactive isotope number 5: 125Pr
Neutrons: 66;
Jn: Unknown;
Decay: ε : 100.00 %
ε p;
t1/2: 3.3s ;

Praseodymium radioactive isotope number 6: 126Pr
Neutrons: 67;
Jn: GE4;
Decay: ε : 100.00 %
ε p;
t1/2: 3.14s ;

Praseodymium radioactive isotope number 7: 127Pr
Neutrons: 68;
Jn: Unknown;
Decay: ε : 100.00 %;
t1/2: 4.2s ;

Praseodymium radioactive isotope number 8: 128Pr
Neutrons: 69;
Jn: 4,5,6;
Decay: ε : 100.00 %;
t1/2: 2.84s ;

Praseodymium radioactive isotope number 9: 129Pr
Neutrons: 70;
Jn: 11/2-;
Decay: ε > 0.00 %;
t1/2: 32s ;

Praseodymium radioactive isotope number 10: 130Pr
Neutrons: 71;
Jn: 4,5+;
Decay: ε : 100.00 %;
t1/2: 40s ;

Praseodymium radioactive isotope number 11: 131Pr
Neutrons: 72;
Jn: 3/2+;
Decay: ε : 100.00 %;
t1/2: 90.6s ;

Praseodymium radioactive isotope number 12: 131Pr
Neutrons: 72;
Jn: 11/2-;
Decay: IT : 96.40 %
ε : 3.60 %;
t1/2: 5.73s ;

Praseodymium radioactive isotope number 13: 132Pr
Neutrons: 73;
Jn: 2+;
Decay: ε : 100.00 %;
t1/2: 96s ;

Praseodymium radioactive isotope number 14: 133Pr
Neutrons: 74;
Jn: 3/2+;
Decay: ε : 100.00 %;
t1/2: 390s ≈ 6.50 m;

Praseodymium radioactive isotope number 15: 134Pr
Neutrons: 75;
Jn: 2-;
Decay: ε : 100.00 %;
t1/2: 1020s ≈ 17.00 m;

Praseodymium radioactive isotope number 16: 134Pr
Neutrons: 75;
Jn: 6-;
Decay: ε : 100.00 %;
t1/2: 660s ≈ 11.00 m;

Praseodymium radioactive isotope number 17: 135Pr
Neutrons: 76;
Jn: 3/2+;
Decay: ε : 100.00 %;
t1/2: 1440s ≈ 24.00 m;

Praseodymium radioactive isotope number 18: 136Pr
Neutrons: 77;
Jn: 2+;
Decay: ε : 100.00 %;
t1/2: 786s ≈ 13.10 m;

Praseodymium radioactive isotope number 19: 137Pr
Neutrons: 78;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 4608s ≈ 1.28 h;

Praseodymium radioactive isotope number 20: 138Pr
Neutrons: 79;
Jn: 1+;
Decay: ε : 100.00 %;
t1/2: 87s ;

Praseodymium radioactive isotope number 21: 138Pr
Neutrons: 79;
Jn: 7-;
Decay: ε : 100.00 %;
t1/2: 7632s ≈ 2.12 h;

Praseodymium radioactive isotope number 22: 139Pr
Neutrons: 80;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 15876s ≈ 4.41 h;

Praseodymium radioactive isotope number 23: 140Pr
Neutrons: 81;
Jn: 1+;
Decay: ε : 100.00 %;
t1/2: 203.4s ≈ 3.39 m;

Praseodymium radioactive isotope number 24: 142Pr
Neutrons: 83;
Jn: 2-;
Decay: β - : 99.98 %
ε : 0.02 %;
t1/2: 68832s ≈ 19.12 h;

Praseodymium radioactive isotope number 25: 142Pr
Neutrons: 83;
Jn: 5-;
Decay: IT : 100.00 %;
t1/2: 876s ≈ 14.60 m;

Praseodymium radioactive isotope number 26: 143Pr
Neutrons: 84;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 1172448s ≈ 13.57 d;

Praseodymium radioactive isotope number 27: 144Pr
Neutrons: 85;
Jn: 0-;
Decay: β - : 100.00 %;
t1/2: 1036.8s ≈ 17.28 m;

Praseodymium radioactive isotope number 28: 144Pr
Neutrons: 85;
Jn: 3-;
Decay: IT : 99.93 %
β - : 0.07 %;
t1/2: 432s ≈ 7.20 m;

Praseodymium radioactive isotope number 29: 145Pr
Neutrons: 86;
Jn: 7/2+;
Decay: β - : 100.00 %;
t1/2: 21542.4s ≈ 5.98 h;

Praseodymium radioactive isotope number 30: 146Pr
Neutrons: 87;
Jn: 2-;
Decay: β - : 100.00 %;
t1/2: 1449s ≈ 24.15 m;

Praseodymium radioactive isotope number 31: 147Pr
Neutrons: 88;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 804s ≈ 13.40 m;

Praseodymium radioactive isotope number 32: 148Pr
Neutrons: 89;
Jn: 1-;
Decay: β - : 100.00 %;
t1/2: 137.4s ≈ 2.29 m;

Praseodymium radioactive isotope number 33: 148Pr
Neutrons: 89;
Jn: 4;
Decay: β - : 100.00 %;
t1/2: 120.6s ≈ 2.01 m;

Praseodymium radioactive isotope number 34: 149Pr
Neutrons: 90;
Jn: 5/2+;
Decay: β - : 100.00 %;
t1/2: 135.6s ≈ 2.26 m;

Praseodymium radioactive isotope number 35: 150Pr
Neutrons: 91;
Jn: 1-;
Decay: β - : 100.00 %;
t1/2: 6.19s ;

Praseodymium radioactive isotope number 36: 151Pr
Neutrons: 92;
Jn: 3/2-;
Decay: β - : 100.00 %;
t1/2: 18.9s ;

Praseodymium radioactive isotope number 37: 152Pr
Neutrons: 93;
Jn: 4-;
Decay: β - : 100.00 %;
t1/2: 3.63s ;

Praseodymium radioactive isotope number 38: 153Pr
Neutrons: 94;
Jn: Unknown;
Decay: β - : 100.00 %;
t1/2: 4.28s ;

Praseodymium radioactive isotope number 39: 154Pr
Neutrons: 95;
Jn: 3+,2+;
Decay: β - : 100.00 %;
t1/2: 2.3s ;

Praseodymium radioactive isotope number 40: 155Pr
Neutrons: 96;
Jn: Unknown;
Decay: β - ?;
t1/2: 3E-07s ≈ 0.30 µs;

Praseodymium radioactive isotope number 41: 156Pr
Neutrons: 97;
Jn: Unknown;
Decay: β - ?;
t1/2: 3E-07s ≈ 0.30 µs;

Praseodymium radioactive isotope number 42: 157Pr
Neutrons: 98;
Jn: Unknown;
Decay: β - ?;
t1/2: 0.3s ;

Praseodymium radioactive isotope number 43: 158Pr
Neutrons: 99;
Jn: Unknown;
Decay: β - ?;
t1/2: 0.2s ;

Praseodymium radioactive isotope number 44: 159Pr
Neutrons: 100;
Jn: Unknown;
Decay: β - ?;
t1/2: 0.1s ;

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