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Aluminium Isotopes






Proton number: 13


Stable Isotopes


Aluminium stable isotope number 1: 27Al
Neutrons: 14;
Abundance: 100%;
Jn: 5/2+;

Natural Radioactive isotopes

There is no Aluminium Natural Radioactive isotopes known

Artificial Radioactive isotopes


Aluminium radioactive isotope number 1: 21Al
Neutrons: 8;
Jn: 5/2+;
Decay: p;
t1/2: 3.5E-08s ≈ 35.00 ns;

Aluminium radioactive isotope number 2: 22Al
Neutrons: 9;
Jn: 3+;
Decay: ε : 100.00 %
ε p ~ 60.00 %
ε : 0.90 %
ε α : 0.31 %;
t1/2: 0.059s ≈ 59.00 ms;

Aluminium radioactive isotope number 3: 23Al
Neutrons: 10;
Jn: 5/2+;
Decay: ε : 100.00 %
ε p : 0.46 %;
t1/2: 0.47s ;

Aluminium radioactive isotope number 4: 23Al
Neutrons: 10;
Jn: 1/2+;
Decay: p : 100.00 %
IT : 8.5E-7 %;
t1/2: 6.2s ;

Aluminium radioactive isotope number 5: 24Al
Neutrons: 11;
Jn: 4+;
Decay: ε : 100.00 %
ε α : 0.04 %
ε p : 1.6E-3 %;
t1/2: 2.053s ;

Aluminium radioactive isotope number 6: 24Al
Neutrons: 11;
Jn: 1+;
Decay: IT : 82.00 %
ε : 18.00 %
ε α : 0.03 %;
t1/2: 0.1313s ;

Aluminium radioactive isotope number 7: 25Al
Neutrons: 12;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 7.183s ;

Aluminium radioactive isotope number 8: 26Al
Neutrons: 13;
Jn: 5+;
Decay: ε : 100.00 %;
t1/2: 2.261131E+13s ≈ 7.169999e+5 y;

Aluminium radioactive isotope number 9: 26Al
Neutrons: 13;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 6.3452s ;

Aluminium radioactive isotope number 10: 28Al
Neutrons: 15;
Jn: 3+;
Decay: β - : 100.00 %;
t1/2: 134.484s ≈ 2.24 m;

Aluminium radioactive isotope number 11: 29Al
Neutrons: 16;
Jn: 5/2+;
Decay: β - : 100.00 %;
t1/2: 393.6s ≈ 6.56 m;

Aluminium radioactive isotope number 12: 30Al
Neutrons: 17;
Jn: 3+;
Decay: β - : 100.00 %;
t1/2: 3.6s ;

Aluminium radioactive isotope number 13: 31Al
Neutrons: 18;
Jn: 3/2,5/2+;
Decay: β - : 100.00 %;
t1/2: 0.644s ;

Aluminium radioactive isotope number 14: 32Al
Neutrons: 19;
Jn: 1+;
Decay: β - : 100.00 %;
t1/2: 0.033s ≈ 33.00 ms;

Aluminium radioactive isotope number 15: 33Al
Neutrons: 20;
Jn: 5/2+;
Decay: β - : 100.00 %
β -n : 8.50 %;
t1/2: 0.0417s ≈ 41.70 ms;

Aluminium radioactive isotope number 16: 34Al
Neutrons: 21;
Jn: Unknown;
Decay: β - : 100.00 %
β -n : 27.00 %;
t1/2: 0.042s ≈ 42.00 ms;

Aluminium radioactive isotope number 17: 35Al
Neutrons: 22;
Jn: Unknown;
Decay: β - : 100.00 %
β -n : 41.00 %;
t1/2: 0.0386s ≈ 38.60 ms;

Aluminium radioactive isotope number 18: 36Al
Neutrons: 23;
Jn: Unknown;
Decay: β - : 100.00 %
β -n < 31.00 %;
t1/2: 0.09s ≈ 90.00 ms;

Aluminium radioactive isotope number 19: 37Al
Neutrons: 24;
Jn: Unknown;
Decay: β - : 100.00 %;
t1/2: 0.0107s ≈ 10.70 ms;

Aluminium radioactive isotope number 20: 38Al
Neutrons: 25;
Jn: Unknown;
Decay: β -;
t1/2: 0.0076s ≈ 7.60 ms;

Aluminium radioactive isotope number 21: 39Al
Neutrons: 26;
Jn: Unknown;
Decay: β -n
β -;
t1/2: 7.6E-06s ≈ 7.60 µs;

Aluminium radioactive isotope number 22: 40Al
Neutrons: 27;
Jn: Unknown;
Decay: β -
β -n;
t1/2: 2.6E-07s ≈ 0.26 µs;

Aluminium radioactive isotope number 23: 41Al
Neutrons: 28;
Jn: Unknown;
Decay: β -;
t1/2: 2.6E-07s ≈ 0.26 µs;

Aluminium radioactive isotope number 24: 42Al
Neutrons: 29;
Jn: Unknown;
Decay: β - ?
β -n ?;
t1/2: 0.001s ≈ 1.00 ms;
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