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Potassium Isotopes

Proton number: 19

Stable Isotopes


Potassium stable isotope number 1: 39K
Neutrons: 20;
Abundance: 93.2581%;
Jn: 3/2+;

Potassium stable isotope number 2: 41K
Neutrons: 22;
Abundance: 6.7302%;
Jn: 3/2+;

Natural Radioactive isotopes


Potassium radioactive isotope number 1: 40K
Neutrons: 21;
Abundance: 0.0117%;
Jn: 4-;
Decay: β - : 89.28 %
ε : 10.72 %;
t1/2: 3.935693E+16s ≈ 1.248000e+9 y;

Artificial Radioactive isotopes


Potassium radioactive isotope number 1: 32K
Neutrons: 13;
Jn: Unknown;
Decay: p ?;
t1/2: unknowns ;

Potassium radioactive isotope number 2: 33K
Neutrons: 14;
Jn: 3/2+;
Decay: p;
t1/2: 2.5E-08s ≈ 25.00 ns;

Potassium radioactive isotope number 3: 34K
Neutrons: 15;
Jn: 1+;
Decay: p;
t1/2: 2.5E-08s ≈ 25.00 ns;

Potassium radioactive isotope number 4: 35K
Neutrons: 16;
Jn: 3/2+;
Decay: ε : 100.00 %
ε p : 0.37 %;
t1/2: 0.178s ;

Potassium radioactive isotope number 5: 36K
Neutrons: 17;
Jn: 2+;
Decay: ε : 100.00 %
ε p : 0.05 %
ε α : 3.4E-3 %;
t1/2: 0.342s ;

Potassium radioactive isotope number 6: 37K
Neutrons: 18;
Jn: 3/2+;
Decay: ε : 100.00 %;
t1/2: 1.226s ;

Potassium radioactive isotope number 7: 38K
Neutrons: 19;
Jn: 3+;
Decay: ε : 100.00 %;
t1/2: 458.16s ≈ 7.64 m;

Potassium radioactive isotope number 8: 38K
Neutrons: 19;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 0.9242s ;

Potassium radioactive isotope number 9: 42K
Neutrons: 23;
Jn: 2-;
Decay: β - : 100.00 %;
t1/2: 44355.6s ≈ 12.32 h;

Potassium radioactive isotope number 10: 43K
Neutrons: 24;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 80280s ≈ 22.30 h;

Potassium radioactive isotope number 11: 44K
Neutrons: 25;
Jn: 2-;
Decay: β - : 100.00 %;
t1/2: 1327.8s ≈ 22.13 m;

Potassium radioactive isotope number 12: 45K
Neutrons: 26;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 1038s ≈ 17.30 m;

Potassium radioactive isotope number 13: 46K
Neutrons: 27;
Jn: 2-;
Decay: β - : 100.00 %;
t1/2: 105s ;

Potassium radioactive isotope number 14: 47K
Neutrons: 28;
Jn: 1/2+;
Decay: β - : 100.00 %;
t1/2: 17.5s ;

Potassium radioactive isotope number 15: 48K
Neutrons: 29;
Jn: 2-;
Decay: β - : 100.00 %
β -n : 1.14 %;
t1/2: 6.8s ;

Potassium radioactive isotope number 16: 49K
Neutrons: 30;
Jn: 3/2+;
Decay: β - : 100.00 %
β -n : 86.00 %;
t1/2: 1.26s ;

Potassium radioactive isotope number 17: 50K
Neutrons: 31;
Jn: 0-,1,2-;
Decay: β - : 100.00 %
β -n : 29.00 %;
t1/2: 0.472s ;

Potassium radioactive isotope number 18: 51K
Neutrons: 32;
Jn: 1/2+,3/2+;
Decay: β - : 100.00 %
β -n : 47.00 %;
t1/2: 0.365s ;

Potassium radioactive isotope number 19: 52K
Neutrons: 33;
Jn: 2-;
Decay: β - : 100.00 %
β -n ~ 64.00 %
β -;
t1/2: 0.105s ;

Potassium radioactive isotope number 20: 53K
Neutrons: 34;
Jn: 3/2+;
Decay: β - : 100.00 %
β -n ~ 67.00 %
β -2n ~ 17.00 %;
t1/2: 0.03s ≈ 30.00 ms;

Potassium radioactive isotope number 21: 54K
Neutrons: 35;
Jn: Unknown;
Decay: β - : 100.00 %
β -n > 0.00 %;
t1/2: 0.01s ≈ 10.00 ms;

Potassium radioactive isotope number 22: 55K
Neutrons: 36;
Jn: Unknown;
Decay: β -n ?
β - ?;
t1/2: 0.003s ≈ 3.00 ms;

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