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Chromium-48

Properties and data of the isotope 48Cr.


Content

See also: list of Chromium isotopes.

 

General data

Name of the isotope:Chromium-48; Cr-48Symbol:48Cr or 4824CrMass number A:48 (= number of nucleons)Atomic number Z:24 (= number of protons)Neutrons N:24Isotopic mass:47.954029(8) u (atomic weight of Chromium-48)Nuclide mass:47.9408634 u (calculated nuclear mass without electrons)Mass excess:-42.82171 MeVMass defect:0.44172975200001 u (per nucleus)Nuclear binding energy:411.46861361 MeV (per nucleus)
8.57226278 MeV (average binding energy per nucleon)
Separation energy:SN = 16.331(9) MeV (first neutron)
SP = 8.104(7) MeV (first proton)
Half-life:21.56(3) hDecay constant λ:8.930467694289 × 10-6 s-1Specific activity α:1.144266689364 × 10+17 Bq g-1
3092612.6739576 Ci g-1
Spin and parity:
(nuclear angular momentum)
0+Year of discovery:1952

 

Radioactive Decay

Half-life T½ = 21.56(3) h (hours) respectively 7.7616 × 104 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
EE/β+48V100 %1.656(7) MeV

 

Parent Nuclides

Direct parent isotope is: 48Mn.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 24) and isobaric (same nucleon number A = 48) with Chromium-48. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 24Isobar A = 48
1034Ne
1135Na
1236Mg
1337Al
1438Si
1539P
1640S48S
1741Cl48Cl
1842Ar48Ar
1943K48K
2044Ca48Ca
2145Sc48Sc
2246Ti48Ti
2347V48V
2448Cr48Cr
2549Mn48Mn
2650Fe48Fe
2751Co48Co
2852Ni48Ni
2953Cu
3054Zn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 48Cr

 


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Last update: 2020-10-13


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