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Chromium-58

Properties and data of the isotope 58Cr.


Content

Chromium-58 is a radioisotope of the chemical element chromium, which, in addition to the element-specific 24 protons, has 34 neutrons in the atomic nucleus, resulting in the mass number 58. The very short-lived, unstable and therefore radioactive nuclide, which can only be produced artificially, has no practical significance; The study of 58Cr is exclusively for academic purposes.

See also: list of Chromium isotopes.

 

General data

Name of the isotope:Chromium-58; Cr-58Symbol:58Cr or 5824CrMass number A:58 (= number of nucleons)Atomic number Z:24 (= number of protons)Neutrons N:34Isotopic mass:57.9441845(16) u (atomic weight of Chromium-58)Nuclide mass:57.9310189 u (calculated nuclear mass without electrons)Mass excess:-51.9918 MeVMass defect:0.538223412 u (per nucleus)Nuclear binding energy:501.35187894 MeV (per nucleus)
8.64399791 MeV (average binding energy per nucleon)
Separation energy:SN = 7.5384(18) MeV (first neutron)
SP = 14.846(85) MeV (first proton)
Half-life:7.0(3) sDecay constant λ:0.099021025794278 s-1Specific activity α:1.046172921804 × 10+21 Bq g-1
28274943832.554 Ci g-1
Spin and parity:
(nuclear angular momentum)
0+Year of discovery:1980

 

Radioactive Decay

Half-life T½ = 7.0(3) s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
β-58Mn100 %3.836(4) MeV

 

Parent Nuclides

Direct parent isotope is: 58V.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 34) and isobaric (same nucleon number A = 58) with Chromium-58. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 34Isobar A = 58
1751Cl
1852Ar
1953K
2054Ca58Ca
2155Sc58Sc
2256Ti58Ti
2357V58V
2458Cr58Cr
2559Mn58Mn
2660Fe58Fe
2761Co58Co
2862Ni58Ni
2963Cu58Cu
3064Zn58Zn
3165Ga58Ga
3266Ge
3367As
3468Se
3569Br
3670Kr
3771Rb

 

External data and identifiers

Adopted Levels, Gammas:NuDat 58Cr

 


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Last update: 2023-10-27


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