Iron-74
Properties and data of the isotope 74Fe.
See also: list of Iron isotopes.
General data
Name of the isotope:Iron-74; Fe-74Symbol:74Fe or 7426FeMass number A:74 (= number of nucleons)Atomic number Z:26 (= number of protons)Neutrons N:48Isotopic mass:73.97897(64) u (atomic weight of Iron-74)Nuclide mass:73.9647073 u (calculated nuclear mass without electrons)Mass excess:-19.58932 MeVMass defect:0.6403968 u (per nucleus)Nuclear binding energy:596.52577682 MeV (per nucleus)
8.06115915 MeV (average binding energy per nucleon)Separation energy:SN = 4.76(78) MeV (first neutron)Half-life:8.2 msDecay constant λ:84.530143970725 s-1Specific activity α:6.973321012362 × 10+23 Bq g-1
18846813546925 Ci g-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:2010
Radioactive Decay
Half-life T½ = 8.2 ms respectively 8.2 × 10-3 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 74Co | ? | 13.23(78) MeV | |
| β-, n | 73Co | ? | 9.76(72) MeV | |
| β-, 2n | 72Co | ? | | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 48) and isobaric (same nucleon number A = 74) with Iron-74. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 48 | Isobar A = 74 |
|---|
| 26 | 74Fe | 74Fe |
| 27 | 75Co | 74Co |
| 28 | 76Ni | 74Ni |
| 29 | 77Cu | 74Cu |
| 30 | 78Zn | 74Zn |
| 31 | 79Ga | 74Ga |
| 32 | 80Ge | 74Ge |
| 33 | 81As | 74As |
| 34 | 82Se | 74Se |
| 35 | 83Br | 74Br |
| 36 | 84Kr | 74Kr |
| 37 | 85Rb | 74Rb |
| 38 | 86Sr | 74Sr |
| 39 | 87Y | |
| 40 | 88Zr | |
| 41 | 89Nb | |
| 42 | 90Mo | |
| 43 | 91Tc | |
| 44 | 92Ru | |
| 45 | 93Rh | |
| 46 | 94Pd | |
| 47 | 95Ag | |
| 48 | 96Cd | |
| 49 | 97In | |
Last update: 2020-10-13
Perma link: https://www.chemlin.org/isotope/iron-74
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