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Silicon Isotopes






Proton number: 14


Stable Isotopes


Silicon stable isotope number 1: 28Si
Neutrons: 14;
Abundance: 92.23%;
Jn: 0+;

Silicon stable isotope number 2: 29Si
Neutrons: 15;
Abundance: 4.683%;
Jn: 1/2+;

Silicon stable isotope number 3: 30Si
Neutrons: 16;
Abundance: 3.087%;
Jn: 0+;

Natural Radioactive isotopes

There is no Silicon Natural Radioactive isotopes known

Artificial Radioactive isotopes


Silicon radioactive isotope number 1: 22Si
Neutrons: 8;
Jn: 0+;
Decay: ε : 100.00 %
ε p : 32.00 %;
t1/2: 0.029s ≈ 29.00 ms;

Silicon radioactive isotope number 2: 23Si
Neutrons: 9;
Jn: 5/2+;
Decay: ε : 100.00 %
ε p : 71.00 %
ε 2p : 3.60 %;
t1/2: 0.0423s ≈ 42.30 ms;

Silicon radioactive isotope number 3: 24Si
Neutrons: 10;
Jn: 0+;
Decay: ε : 100.00 %
ε p : 40.00 %;
t1/2: 0.14s ;

Silicon radioactive isotope number 4: 25Si
Neutrons: 11;
Jn: 5/2+;
Decay: ε : 100.00 %
ε p;
t1/2: 0.22s ;

Silicon radioactive isotope number 5: 26Si
Neutrons: 12;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 2.234s ;

Silicon radioactive isotope number 6: 27Si
Neutrons: 13;
Jn: 5/2+;
Decay: ε : 100.00 %;
t1/2: 4.16s ;

Silicon radioactive isotope number 7: 31Si
Neutrons: 17;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 9438s ≈ 2.62 h;

Silicon radioactive isotope number 8: 32Si
Neutrons: 18;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 4825008000s ≈ 153.00 y;

Silicon radioactive isotope number 9: 33Si
Neutrons: 19;
Jn: 3/2+;
Decay: β - : 100.00 %;
t1/2: 6.11s ;

Silicon radioactive isotope number 10: 34Si
Neutrons: 20;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 2.77s ;

Silicon radioactive isotope number 11: 35Si
Neutrons: 21;
Jn: Unknown;
Decay: β - : 100.00 %;
t1/2: 0.78s ;

Silicon radioactive isotope number 12: 36Si
Neutrons: 22;
Jn: 0+;
Decay: β - : 100.00 %
β -n < 10.00 %;
t1/2: 0.45s ;

Silicon radioactive isotope number 13: 37Si
Neutrons: 23;
Jn: 7/2-;
Decay: β - : 100.00 %
β -n : 17.00 %;
t1/2: 0.09s ≈ 90.00 ms;

Silicon radioactive isotope number 14: 38Si
Neutrons: 24;
Jn: 0+;
Decay: β - : 100.00 %
β -n;
t1/2: 1E-06s ≈ 1.00 µs;

Silicon radioactive isotope number 15: 39Si
Neutrons: 25;
Jn: Unknown;
Decay: β -n
β -;
t1/2: 0.0475s ≈ 47.50 ms;

Silicon radioactive isotope number 16: 40Si
Neutrons: 26;
Jn: 0+;
Decay: β -n
β -;
t1/2: 0.033s ≈ 33.00 ms;

Silicon radioactive isotope number 17: 41Si
Neutrons: 27;
Jn: Unknown;
Decay: β -n ?
β -;
t1/2: 0.02s ≈ 20.00 ms;

Silicon radioactive isotope number 18: 42Si
Neutrons: 28;
Jn: 0+;
Decay: β - : 100.00 %
β -n;
t1/2: 0.0125s ≈ 12.50 ms;

Silicon radioactive isotope number 19: 43Si
Neutrons: 29;
Jn: Unknown;
Decay: β -n
β -;
t1/2: 6E-08s ≈ 60.00 ns;

Silicon radioactive isotope number 20: 44Si
Neutrons: 30;
Jn: 0+;
Decay: β -n ?
β - ?;
t1/2: 0.01s ≈ 10.00 ms;
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