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Rubidium Isotopes






Proton number: 37


Stable Isotopes


Rubidium stable isotope number 1: 85Rb
Neutrons: 48;
Abundance: 72.17%;
Jn: 5/2-;

Natural Radioactive isotopes


Rubidium radioactive isotope number 1: 87Rb
Neutrons: 50;
Abundance: 27.83%;
Jn: 3/2-;
Decay: β - : 100.00 %;
t1/2: 1.567339E+18s ≈ 4.969999e+10 y;

Artificial Radioactive isotopes


Rubidium radioactive isotope number 1: 71Rb
Neutrons: 34;
Jn: Unknown;
Decay: p ?;
t1/2: unknowns ;

Rubidium radioactive isotope number 2: 72Rb
Neutrons: 35;
Jn: 3+;
Decay: p;
t1/2: 1.2E-06s ≈ 1.20 µs;

Rubidium radioactive isotope number 3: 73Rb
Neutrons: 36;
Jn: Unknown;
Decay: p > 0.00 %
ε;
t1/2: 3E-08s ≈ 30.00 ns;

Rubidium radioactive isotope number 4: 74Rb
Neutrons: 37;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 0.0649s ≈ 64.90 ms;

Rubidium radioactive isotope number 5: 75Rb
Neutrons: 38;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 19s ;

Rubidium radioactive isotope number 6: 76Rb
Neutrons: 39;
Jn: 1-;
Decay: ε : 100.00 %
ε α : 3.8E-7 %;
t1/2: 36.5s ;

Rubidium radioactive isotope number 7: 77Rb
Neutrons: 40;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 226.2s ≈ 3.77 m;

Rubidium radioactive isotope number 8: 78Rb
Neutrons: 41;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 1059.6s ≈ 17.66 m;

Rubidium radioactive isotope number 9: 78Rb
Neutrons: 41;
Jn: 4-;
Decay: ε : 90.00 %
IT : 10.00 %;
t1/2: 344.4s ≈ 5.74 m;

Rubidium radioactive isotope number 10: 79Rb
Neutrons: 42;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 1374s ≈ 22.90 m;

Rubidium radioactive isotope number 11: 80Rb
Neutrons: 43;
Jn: 1+;
Decay: ε : 100.00 %;
t1/2: 33.4s ;

Rubidium radioactive isotope number 12: 81Rb
Neutrons: 44;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 16452s ≈ 4.57 h;

Rubidium radioactive isotope number 13: 81Rb
Neutrons: 44;
Jn: 9/2+;
Decay: IT : 97.60 %
ε : 2.40 %;
t1/2: 1830s ≈ 30.50 m;

Rubidium radioactive isotope number 14: 82Rb
Neutrons: 45;
Jn: 1+;
Decay: ε : 100.00 %;
t1/2: 76.38s ;

Rubidium radioactive isotope number 15: 82Rb
Neutrons: 45;
Jn: 5-;
Decay: ε : 100.00 %
IT < 0.33 %;
t1/2: 23299.2s ≈ 6.47 h;

Rubidium radioactive isotope number 16: 83Rb
Neutrons: 46;
Jn: 5/2-;
Decay: ε : 100.00 %;
t1/2: 7447680s ≈ 86.20 d;

Rubidium radioactive isotope number 17: 84Rb
Neutrons: 47;
Jn: 2-;
Decay: ε : 96.20 %
β - : 3.80 %;
t1/2: 2859840s ≈ 33.10 d;

Rubidium radioactive isotope number 18: 84Rb
Neutrons: 47;
Jn: 6-;
Decay: IT : 100.00 %;
t1/2: 1215.6s ≈ 20.26 m;

Rubidium radioactive isotope number 19: 86Rb
Neutrons: 49;
Jn: 2-;
Decay: β - : 99.99 %
ε : 5.2E-3 %;
t1/2: 1610669s ≈ 18.64 d;

Rubidium radioactive isotope number 20: 86Rb
Neutrons: 49;
Jn: 6-;
Decay: IT : 100.00 %
β - < 0.30 %;
t1/2: 61.02s ;

Rubidium radioactive isotope number 21: 88Rb
Neutrons: 51;
Jn: 2-;
Decay: β - : 100.00 %;
t1/2: 1066.38s ≈ 17.77 m;

Rubidium radioactive isotope number 22: 89Rb
Neutrons: 52;
Jn: 3/2-;
Decay: β - : 100.00 %;
t1/2: 909s ≈ 15.15 m;

Rubidium radioactive isotope number 23: 90Rb
Neutrons: 53;
Jn: 0-;
Decay: β - : 100.00 %;
t1/2: 158s ≈ 2.63 m;

Rubidium radioactive isotope number 24: 90Rb
Neutrons: 53;
Jn: 3-;
Decay: β - : 97.40 %
IT : 2.60 %;
t1/2: 258s ≈ 4.30 m;

Rubidium radioactive isotope number 25: 91Rb
Neutrons: 54;
Jn: 3/2-;
Decay: β - : 100.00 %;
t1/2: 58.4s ;

Rubidium radioactive isotope number 26: 92Rb
Neutrons: 55;
Jn: 0-;
Decay: β - : 100.00 %
β -n : 0.01 %;
t1/2: 4.492s ;

Rubidium radioactive isotope number 27: 93Rb
Neutrons: 56;
Jn: 5/2-;
Decay: β - : 100.00 %
β -n : 1.39 %;
t1/2: 5.84s ;

Rubidium radioactive isotope number 28: 94Rb
Neutrons: 57;
Jn: 3-;
Decay: β - : 100.00 %
β -n : 10.50 %;
t1/2: 2.702s ;

Rubidium radioactive isotope number 29: 95Rb
Neutrons: 58;
Jn: 5/2-;
Decay: β - : 100.00 %
β -n : 8.73 %;
t1/2: 0.3775s ;

Rubidium radioactive isotope number 30: 96Rb
Neutrons: 59;
Jn: 2+;
Decay: β - : 100.00 %
β -n : 14.00 %;
t1/2: 0.2028s ;

Rubidium radioactive isotope number 31: 97Rb
Neutrons: 60;
Jn: 3/2+;
Decay: β - : 100.00 %
β -n : 25.10 %;
t1/2: 0.1699s ;

Rubidium radioactive isotope number 32: 98Rb
Neutrons: 61;
Jn: 0,1;
Decay: β - : 100.00 %
β -n : 13.80 %
β - : 0.05 %;
t1/2: 0.114s ;

Rubidium radioactive isotope number 33: 99Rb
Neutrons: 62;
Jn: 5/2+;
Decay: β - : 100.00 %
β -n : 15.90 %;
t1/2: 0.0503s ≈ 50.30 ms;

Rubidium radioactive isotope number 34: 100Rb
Neutrons: 63;
Jn: Unknown;
Decay: β - : 100.00 %
β -n : 6.00 %
β -2n : 0.16 %;
t1/2: 0.051s ≈ 51.00 ms;

Rubidium radioactive isotope number 35: 101Rb
Neutrons: 64;
Jn: 3/2+;
Decay: β - : 100.00 %
β -n : 28.00 %;
t1/2: 0.032s ≈ 32.00 ms;
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