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Chromium-43

Properties and data of the isotope 43Cr.


Content

See also: list of Chromium isotopes.

 

General data

Name of the isotope:Chromium-43; Cr-43Symbol:43Cr or 4324CrMass number A:43 (= number of nucleons)Atomic number Z:24 (= number of protons)Neutrons N:19Isotopic mass:42.99788(43) u (atomic weight of Chromium-43)Nuclide mass:42.9847144 u (calculated nuclear mass without electrons)Mass excess:-1.97477 MeVMass defect:0.354554172 u (per nucleus)Nuclear binding energy:330.26508389 MeV (per nucleus)
7.68058335 MeV (average binding energy per nucleon)
Separation energy:SN = 16.77(56) MeV (first neutron)
SP = 1.64(44) MeV (first proton)
Half-life:21.2(7) msDecay constant λ:32.695621724526 s-1Specific activity α:4.688039036388 × 10+23 Bq g-1
12670375774022 Ci g-1
Spin and parity:
(nuclear angular momentum)
(3/2+)Mirror nucleus:Potassium-43Year of discovery:1992

 

Radioactive Decay

Half-life T½ = 21.2(7) ms respectively 2.12 × 10-2 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
EE β+43V15.95(40) MeV
EE, p42Ti79.3(30) %
EE, 2p41Sc11.6(10) %
EE, 3p40Ca0.13 %

 

Parent Nuclides

Direct parent isotope is: 44Mn.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 19) and isobaric (same nucleon number A = 43) with Chromium-43. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 19Isobar A = 43
827O
928F
1029Ne
1130Na
1231Mg
1332Al43Al
1433Si43Si
1534P43P
1635S43S
1736Cl43Cl
1837Ar43Ar
1938K43K
2039Ca43Ca
2140Sc43Sc
2241Ti43Ti
2342V43V
2443Cr43Cr
2544Mn43Mn
2645Fe
2746Co

 

External data and identifiers

Adopted Levels, Gammas:NuDat 43Cr

 


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Last update: 2023-10-04


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