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Chromium-54

Properties and data of the isotope 54Cr.


Content

See also: list of Chromium isotopes.

 

General data

Name of the isotope:Chromium-54; Cr-54Symbol:54Cr or 5424CrMass number A:54 (= number of nucleons)Atomic number Z:24 (= number of protons)Neutrons N:30Isotopic mass:53.938879(4) u (atomic weight of Chromium-54)Nuclide mass:53.9257134 u (calculated nuclear mass without electrons)Mass excess:-56.93384 MeVMass defect:0.508869248 u (per nucleus)Nuclear binding energy:474.0086513 MeV (per nucleus)
8.77793799 MeV (average binding energy per nucleon)
Separation energy:SN = 9.71908(12) MeV (first neutron)
SP = 12.373(3) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
0+Charge radius:3.6885(74) femtometer fmMirror nucleus:Zinc-54Year of discovery:1930

 

Parent Nuclides

Direct parent isotopes are: 54Mn, 54V.

 

Occurrence

Comparison of the natural Chromium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

 

Atomic Mass maQuantityHalf-lifeSpin
Chromium
Isotopic mixture
51.9961 u100 %
Isotope 50Cr49.9460414(5) u4.345(13) %1.3 × 1018 a0+
Isotope 52Cr51.940506(4) u83.789(18) %stable0+
Isotope 53Cr52.940648(4) u9.501(17) %stable3/2-
Isotope 54Cr53.938879(4) u2.365(7) %stable0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 30) and isobaric (same nucleon number A = 54) with Chromium-54. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 30Isobar A = 54
1343Al
1444Si
1545P
1646S
1747Cl
1848Ar
1949K54K
2050Ca54Ca
2151Sc54Sc
2252Ti54Ti
2353V54V
2454Cr54Cr
2555Mn54Mn
2656Fe54Fe
2757Co54Co
2858Ni54Ni
2959Cu54Cu
3060Zn54Zn
3161Ga
3262Ge
3363As
3464Se

 

External data and identifiers

Adopted Levels, Gammas:NuDat 54Cr

 


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Last update: 2023-10-04


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