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Iron Isotopes

Proton number: 26

Stable Isotopes


Iron stable isotope number 1: 54Fe
Neutrons: 28;
Abundance: 5.845%;
Jn: 0+;

Iron stable isotope number 2: 56Fe
Neutrons: 30;
Abundance: 91.754%;
Jn: 0+;

Iron stable isotope number 3: 57Fe
Neutrons: 31;
Abundance: 2.119%;
Jn: 1/2-;

Iron stable isotope number 4: 58Fe
Neutrons: 32;
Abundance: 0.282%;
Jn: 0+;

Natural Radioactive isotopes

There is no Iron Natural Radioactive isotopes known

Artificial Radioactive isotopes


Iron radioactive isotope number 1: 45Fe
Neutrons: 19;
Jn: 3/2+;
Decay: 2p;
t1/2: 0.0038s ≈ 3.80 ms;

Iron radioactive isotope number 2: 46Fe
Neutrons: 20;
Jn: 0+;
Decay: Unknown;
t1/2: 0.012s ≈ 12.00 ms;

Iron radioactive isotope number 3: 47Fe
Neutrons: 21;
Jn: Unknown;
Decay: ε : 100.00 %
ε p;
t1/2: 0.0218s ≈ 21.80 ms;

Iron radioactive isotope number 4: 48Fe
Neutrons: 22;
Jn: 0+;
Decay: ε : 100.00 %
ε p > 3.60 %;
t1/2: 0.044s ≈ 44.00 ms;

Iron radioactive isotope number 5: 49Fe
Neutrons: 23;
Jn: 7/2-;
Decay: ε : 100.00 %
ε p ≥ 52.00 %;
t1/2: 0.07s ≈ 70.00 ms;

Iron radioactive isotope number 6: 50Fe
Neutrons: 24;
Jn: 0+;
Decay: ε : 100.00 %
ε p ~ 0.00 %;
t1/2: 0.155s ;

Iron radioactive isotope number 7: 51Fe
Neutrons: 25;
Jn: 5/2-;
Decay: ε : 100.00 %;
t1/2: 0.305s ;

Iron radioactive isotope number 8: 52Fe
Neutrons: 26;
Jn: 0+;
Decay: ε : 100.00 %;
t1/2: 29790s ≈ 8.28 h;

Iron radioactive isotope number 9: 52Fe
Neutrons: 26;
Jn: 12+;
Decay: ε : 100.00 %;
t1/2: 45.9s ;

Iron radioactive isotope number 10: 53Fe
Neutrons: 27;
Jn: 7/2-;
Decay: ε : 100.00 %;
t1/2: 510.6s ≈ 8.51 m;

Iron radioactive isotope number 11: 53Fe
Neutrons: 27;
Jn: 19/2-;
Decay: IT : 100.00 %;
t1/2: 151.56s ≈ 2.53 m;

Iron radioactive isotope number 12: 55Fe
Neutrons: 29;
Jn: 3/2-;
Decay: ε : 100.00 %;
t1/2: 86314030s ≈ 2.74 y;

Iron radioactive isotope number 13: 59Fe
Neutrons: 33;
Jn: 3/2-;
Decay: β - : 100.00 %;
t1/2: 3844368s ≈ 44.49 d;

Iron radioactive isotope number 14: 60Fe
Neutrons: 34;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 4.7304E+13s ≈ 1.500000e+6 y;

Iron radioactive isotope number 15: 61Fe
Neutrons: 35;
Jn: 3/2-,5/2-;
Decay: β - : 100.00 %;
t1/2: 358.8s ≈ 5.98 m;

Iron radioactive isotope number 16: 62Fe
Neutrons: 36;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 68s ;

Iron radioactive isotope number 17: 63Fe
Neutrons: 37;
Jn: 5/2-;
Decay: β - : 100.00 %;
t1/2: 6.1s ;

Iron radioactive isotope number 18: 64Fe
Neutrons: 38;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 2s ;

Iron radioactive isotope number 19: 65Fe
Neutrons: 39;
Jn: Unknown;
Decay: β - : 100.00 %;
t1/2: 1.3s ;

Iron radioactive isotope number 20: 66Fe
Neutrons: 40;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 0.44s ;

Iron radioactive isotope number 21: 67Fe
Neutrons: 41;
Jn: 5/2+;
Decay: β - : 100.00 %;
t1/2: 0.6s ;

Iron radioactive isotope number 22: 67Fe
Neutrons: 41;
Jn: 1/2-;
Decay: IT : 100.00 %;
t1/2: 7.5E-05s ≈ 75.00 µs;

Iron radioactive isotope number 23: 68Fe
Neutrons: 42;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 0.187s ;

Iron radioactive isotope number 24: 69Fe
Neutrons: 43;
Jn: 1/2-;
Decay: β - : 100.00 %;
t1/2: 0.109s ;

Iron radioactive isotope number 25: 70Fe
Neutrons: 44;
Jn: 0+;
Decay: β - : 100.00 %;
t1/2: 0.094s ≈ 94.00 ms;

Iron radioactive isotope number 26: 71Fe
Neutrons: 45;
Jn: 7/2+;
Decay: β -;
t1/2: 1.5E-07s ≈ 0.15 µs;

Iron radioactive isotope number 27: 72Fe
Neutrons: 46;
Jn: 0+;
Decay: β -;
t1/2: 1.5E-07s ≈ 0.15 µs;

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